Page 20 of Green Mars


  People laughed, and the gleam of triumph in Phyllis’s eye had nothing to do with Jupiter. But there was a tightening at the corner of her mouth; something at the end of her tale had darkened the triumph, somehow.

  “And you were the leader, right?” someone asked.

  Phyllis held up a hand, to say she could not deny it though she wanted to. “It was a cooperative effort,” she said. “But sometimes someone has to decide when there’s an impasse, or simply a need for speed. And I had been head of Clarke before the catastrophe.”

  She flashed her big smile, confident that they had enjoyed the account. Sax smiled with the rest, and nodded when she looked his way. She was an attractive woman, but not, he thought, very bright. Or maybe it was just that he did not like her very much. For certainly she was very intelligent in some ways, a good biologist when she had done biology, and certain to score high on an IQ test. But there were different types of intelligence, and not all of them were subject to analytic testing. Sax had noticed this fact in his student years: that there were people who would score high on any intelligence test, and were very good at their work, but who at the same time could walk into a room of people and within an hour have many of the occupants of that room laughing at them, or even despising them. Which was not very smart. Indeed the most giddy of high school cheerleaders, say, managing to be friendly with everyone and therefore universally popular, seemed to Sax to be exercising an intelligence at least as powerful as any awkward brilliant mathematician’s—the calculus of human interaction being so much more subtle and variable than any physics, somewhat like the emerging field of math called cascading recombinant chaos, only less simple. So that there were at least two kinds of intelligence, and probably many more: spatial, aesthetic, moral or ethical, interactional, analytic, synthetic, and so forth. And it was those people who were intelligent in a number of different ways who were truly exceptional, who stood out as something special.

  Phyllis, however, basking in the attention of her listeners, most of them much younger than her and, at least on the surface, in awe of her historicity—Phyllis was not one of those polymaths. On the contrary, she seemed rather dim when it came to judging what people thought of her. Sax, who knew he shared the deficiency, watched her with the best Lindholm smile he could muster. But it seemed to him a fairly obviously vain performance on her part, even a bit arrogant. And arrogance was always stupid. Or else a mask for some kind of insecurity. Hard to guess what that insecurity might be, in such a successful and attractive person. And she certainly was attractive.

  After supper they went back up to the observation room on the top floor, and there under a glittering bowl of stars the crowd from Biotique turned on some music. It was the kind called nuevo calypso, the current rage in Burroughs, and several members of the group brought out instruments and played along, while others moved to the middle of the room and began to dance. The music was paced at about a hundred beats a minute, Sax calculated, perfect physiological timing for stimulating the heart just a bit; the secret to most dance music, he supposed.

  And then Phyllis was there by his side, grabbing for his hand and pulling him out among the dancers. Sax only just restrained himself from jerking his hand away from her, and he was sure that his response to her smiling invitation was sickly at best. He had never danced in his Ufe; as far as he could recall. But that was Sax Russell’s life. Surely Stephen Lindholm had danced a lot. So Sax began to hop gently up and down in time with the bass steel drum, wiggling his arms uncertainly at his sides, smiling at Phyllis in a desperate simulation of debonair pleasure.

  Later that evening the younger Biotique crew were still dancing, and Sax took the elevator down to bring some tubs of ice milk back up from the kitchens. When he got back into the elevator Phyllis was already inside, coming back up from the dorm floor. “Here, let me help with those,” she said, and took two of the four plastic bags hanging from his fingers. Then when she had them she leaned down (she was a few centimeters taller than him) and kissed him full on the mouth. He kissed back, but it was such a shock that he didn’t really start to feel it until she pulled away; then the memory of her tongue between his lips was like another loss. He tried to look less than befuddled, but by the way she laughed he knew he had failed. “I see you’re not as much of a lady-killer as you look,” she said, which given the situation only made him more alarmed. In point of fact, no one had ever done that to him before. He tried to rally, but the elevator slowed and the doors hissed open.

  Through dessert and the rest of the party Phyllis did not approach him again. But when the timeslip began he went to the elevators to go back to his room, and as the doors began to close Phyllis slipped through them and in, and as soon as the elevator began to drop she was kissing him again. He put his arms around her and kissed back, trying to figure out what Lindholm would do in this situation, and if there was any way out of it that wouldn’t lead to trouble. When the elevator slowed, Phyllis leaned back with a dreamy unfocused gaze and said, “Come walk me to my room.” Reeling a bit, Sax held her upper arm like a bit of delicate lab equipment, and was led to her room, a tiny chamber like all the rest of the bedrooms. Standing in the doorway they kissed again, despite Sax’s strong feeling that this was his last chance to escape, gracefully or not; but he was kissing her back pretty passionately, he noticed, and when she pulled back to murmur, “You might as well come inside,” he followed without protest; indeed his penis was snagged halfway up in its blind grope toward the stars, all his chromosomes humming loudly, the silly fools, at this chance at immortality. It had been a long time since he had made love to anyone except Hiroko, and those encounters, though friendly and pleasant, were not passionate, more an extension of their bathing; whereas Phyllis, fumbling at their clothes as they fell onto her bed kissing, was clearly excited, and this excitement was transferring to Sax by a kind of immediate conduction. His erection sprang free eagerly from his pants as Phyllis got the pants down his legs, as if in illustration of the selfish gene theory, and he could only laugh and tug at the long ventral zipper of her jumpsuit. Lindholm, free of any worries, would certainly be aroused by the encounter. That was clear. And so he had to be too. And besides, although he did not especially like Phyllis, he did know her; there was that old First Hundred bond, the memories of those years together in Underbill—there was something provocative in the notion of making love to a woman he had known so long. And every one else in the First Hundred had been polygamous, it seemed, everyone but Phyllis and him. So now they were making up for it. And she was very attractive. And it was something, actually, just to be wanted.

  All these rationalizations were easy in the moment itself, and indeed forgotten entirely in the rush of sexual sensation. But immediately upon completion of the act Sax began to worry again. Should he go back to his room, should he stay? Phyllis had fallen asleep with her hand on his flank, as if to assure herself that he would stay. In sleep everyone looked like a child. He surveyed the length of her body, shocked slightly once again by the various manifestations of sexual dimorphism. Breathing so calmly. Just to be wanted . . . her fingers, still tensed across his ribs. And so he stayed; but he did not sleep much.

  Sax threw himself into the work on the glacier and the surrounding terrain. Phyllis went out in the field sometimes, but she was always discreet in her behavior with him; Sax doubted if Claire (or Jessica!) or anyone else realized what had happened—or realized that every few days, it was happening again. This was another complication; how would Lindholm react to Phyllis’s apparent desire for secrecy? But in the end it was not an issue. Lindholm was more or less forced, as a matter of chivalry or compliance or something like that, to act as Sax would have. And so they kept their affair to themselves, much as they would have in Underhill, or on the Ares, or in Antarctica. Old habits die hard.

  And with the distraction of the glacier, it was easy enough to keep the affair secret. The ice and the ribbed land around it were fascinating environments, and there was a lot to stu
dy and try to understand out there.

  The surface of the glacier proved to be extremely broken, as the literature had suggested—mixed with regolith during the flooding, and shot through with trapped carbonation bubbles. Rocks and boulders caught on the surface had melted the ice underneath them, and then it had refrozen around them, in a daily cycle that had left them all about two-thirds submerged. All the seracs, standing above the jumbled surface of the glacier like titanic dolmens, were on close inspection found to be deeply pitted. The ice was brittle because of the extreme cold, and slow to flow downhill because of the reduced gravity; nevertheless it was moving downstream, like a river in slow motion, and because its source was emptied, the whole mass would eventually end up on Vastitas Borealis. And signs of this movement could be found in the newly broken ice seen every day—new crevasses, fallen seracs, cracked bergs. These fresh surfaces were quickly covered by crystalline ice flowers, whose saltiness only added to the speed of crystallization.

  Fascinated by this environment, Sax got in the habit of going out by himself every day at dawn, following flagged trails the station crew had set out. In the first hour of the day all the ice glowed in vibrant pink and rose tones, reflecting tints of the sky. As direct sunlight struck the glaciers smashed surfaces, steam would begin to rise out of the cracks and iced-over pools, and the ice flowers glittered like gaudy jewelry. On windless mornings a small inversion layer trapped the mist some twenty meters overhead, forming a thin orange cloud. Clearly the glacier’s water was diffusing fairly quickly out into the world.

  As he hiked through the frigid air he spotted many different species of snow algae and lichen. The glacier-facing slopes of the two lateral ridges were especially well populated, flecked by small patches of green, gold, olive, black, rust, and many other colors—perhaps thirty or forty all told. Sax strolled over these pseudo-moraines carefully, as unwilling to step on the plant life as he would be to step on any experiment in the lab. Although truthfully it looked as though most of the lichens would not notice. They were tough; bare rock and water were all they required, plus light—though not much of that appeared necessary—they grew under ice, inside ice, and even inside porous chunks of translucent rock. In something as hospitable as a crack in the moraine, they positively flourished. Every crack Sax looked in sported knobs of Iceland lichen, yellow and bronze, which under the glass revealed tiny forking stalks, fringed by spines. On flat rocks he found the crustose lichens: button lichen, stud lichen, shield lichen, candellaria, apple-green map lichen, and the red-orange jewel lichen that indicated a concentration of sodium nitrate in the regolith. Clumped under the ice flowers were growths of pale gray-green snow lichen, which under magnification proved to have stalks like the Iceland lichen, great masses of them looking delicate as lace. Worm lichen was dark gray, and under magnification revealed weathered antlers that appeared extremely delicate. And yet if pieces broke off, the algal cells enclosed in their fungal threads would simply keep growing, and develop into more lichen, attaching wherever they came to rest. Reproduction by fragmentation; useful indeed in such an environment.

  So the lichen were prospering, and along with the species that Sax could identify, with the help of photos on his wristpad’s little display screen, were many more that seemed not to correspond to any listed species. He was curious enough about these nondescripts to pluck a few samples, to take back and show to Claire and Jessica.

  But lichen was only the beginning. On Earth, regions of broken rock newly exposed by retreating ice, or by the growth of young mountains, were called boulder fields, or talus. On Mars the equivalent zone was the regolith—thus effectively the greater part of the surface of the planet. Talus world. On Earth these regions were first colonized by microbacteria and lichen, which, along with chemical weathering, began to break the rock down into a thin immature soil, slowly filling the cracks between rocks. In time there was enough organic material in this matrix to support other kinds of flora, and areas at this stage were called feilfields, féile being Gaelic for stone. It was an accurate name, for stone fields they were, the ground surface studded with rocks, the soil between and under them less than three centimeters thick, supporting a community of small ground-hugging plants.

  And now there were feilfields on Mars. Claire and Jessica suggested to Sax that he cross the glacier, and hike downstream along the lateral moraine, and so one morning (slipping away from Phyllis) he did so, and after half an hour’s hiking, stopped on a knee-high boulder. Below him, sloping into the rocky trough next to the glacier, was a wet patch of flat ground, twinkling in the late-morning light. Clearly meltwater ran over it most days—already in the utter stillness of the morning he could hear the drips of little streams under the glacier’s edge, sounding like a choir of tiny wooden chimes. And on this miniature watershed, among the threads of running water, were spots of color, everywhere, leaping out at the eye—flowers. A patch of fellfield, then, with its characteristic millefleur effect, the gray waste peppered with dots of red, blue, yellow, pink, white. . . .

  The flowers were mounted on little mossy cushions or florettes, or tucked among hairy leaves. All the plants hugged the dark ground, which would be markedly warmer than the air above it; nothing but grass blades stuck higher than a few centimeters off the soil. He tiptoed carefully from rock to rock, unwilling to step on even a single plant. He knelt on the gravel to inspect some of the little growths, the magnifying lenses on his faceplate at their highest power. Glowing vividly in the morning light were the classic fellfieid organisms: moss campion, with its rings of tiny pink flowers on dark green pads; a phlox cushion; five-centimeter sprigs of bluegrass, like glass in the light, using the phlox taproot to anchor its own delicate roots . . . there was a magenta alpine primrose, with its yellow eye and its deep green leaves, which formed narrow troughs to channel water down into the rosette. Many of the leaves of these plants were hairy. There was an intensely blue forget-me-not, the petals so suffused with warming anthocyanins that they were nearly purple—the color that the Martian sky would achieve at around 230 millibars, according to Sax’s calculations on the drive to Arena. It was surprising there was no name for that color, it was so distinctive. Perhaps that was cyanic blue.

  The morning passed as he moved very slowly from plant to plant, using his wristpad’s field guide to identify sandwort, buckwheat, pussypaws, dwarf lupines, dwarf clovers, and his namesake, saxifrage. Rock breaker. He had never seen one in the wild before, and he spent a long time looking at the first one he found: arctic saxifrage, Saxifraga hirculus, tiny branches covered with long leaves, ending in small pale blue flowers.

  As with the lichens, there were many plants that he couldn’t identify; they exhibited features from different species, even genuses, or else they were completely nondescript, their features an odd melange of features from exotic biospheres, some looking like underwater growths, or new kinds of cacti. Engineered species, presumably, although it was surprising these weren’t listed in the guide. Mutants, perhaps. Ah but there, where a wide crack had collected a deeper layer of humus and a tiny rivulet, was a clump of kobresia. Kobresia and the other sedges grew where it was wet, and their extremely absorbent turf chemically altered the soil under it quite rapidly, performing important work in the slow transition from fellfieid to alpine meadow. Now that he had spotted it he could see minuscule watercourses marked by their population of sedges, running down through the rocks. Kneeling on a thinsulate pad, Sax clicked off his magnifying glasses and looked around, and as low as he was, he could suddenly see a whole series of little feilfields, scattered on the slope of the moraine like patches of Persian carpet, shredded by the passing ice.

  Back at the station Sax spent a lot of time sequestered in the labs, looking at plant specimens through microscopes, running a variety of tests, and talking about the results to Berkina and Claire and Jessica.

  “They’re mostly polyploids?” Sax asked.

  “Yes,” Berkina said.

  Polyploidy was fairly freque
nt at high altitudes on Earth, so it was not surprising. It was an odd phenomenon—a doubling or tripling or even quadrupling of the original chromosome number in a plant. Diploid plants, with ten chromosomes, would be succeeded by polyploids with twenty or thirty or even forty chromosomes. Hybridizers had used the phenomenon for years to develop fancy garden plants, because polyploids were usually larger—larger leaves, flowers, fruits, cell sizes—and they often had a wider range than their parents. That kind of adaptability made them better at occupying new areas, like the spaces in and under a glacier. There were islands in the Terran Arctic where eighty percent of the plants were polyploid. Sax supposed that it was a strategy to avoid the destructive effects of excessive mutation rates, which would explain why it occurred in high-UV areas. Intense UV irradiation would break a number of genes, but if they were replicated in the other sets of chromosomes, then there was likely to be no genotypic damage, and no impediment to reproduction.

  “We find that even when we haven’t started with polyploids, which we usually do, they change within a few generations.”