Out of the city, the road becomes difficult to walk.

The bumpy truck and the crowded environment made Yang Rui sleepy. The only good thing was that it was warm. The truck itself had a fence. Then tie up the air leak and use a thick green army coat to block it. It's very comfortable.

Military overcoat is a necessary equipment for students nowadays. On the one hand, the materials used for military overcoat are real. On the other hand, there are too few choices for winter clothes.

Yang Rui is wearing a British style tweed coat. He has a slender figure. He chooses British style winter clothes to be comparable to models.

However, in the back of the truck, the British tweed coat is out of place in a pile of military coats.

As a good youth in the 21st century, Yang Rui has some habitual maverick, at least not willing to bump his shirt with others. However, the good youth in the 1980s seem to think more about not being divorced from the collective.

When we get off the bus and a group of people appear in the wilderness, the effect of this sense of collectivity seems to be stronger.

However, Yang Rui has never cared about such things.

People who do scientific research stay in the laboratory for a long time, it doesn't matter whether there is anyone around. When they need to chat, they just grab a mouse. If they do it a little longer, they won't even go out of their way to grab the control group.

After that, they were executed without sadness.

In contrast, botany is a subject that Yang Rui seldom covers. When talking about biologists, many people will ask if you know what flowers / grass / trees / seeds / insects / birds / whips / fur are. However, biologists don't learn these.

Of course, if you don't study at all, you won't be able to. For example, Yang Rui will come to some field surveys now, but what you can learn is the general concept.

If you want to know about plant taxonomy, it's basically a matter for botanists. To be more accurate, you should be a plant taxonomist. Moreover, there are too many kinds of plants or organisms on the earth. Experienced botanists usually know their own familiar fields.

Of course, that's the details.

On a large scale, such as Professor Xie Gaoyi, who specializes in plant taxonomy, you can easily see what a leaf is.

After finishing the team a little, he asked the crowd to gather around and follow him. As he walked, he introduced the passing plants to the crowd.

"This is a pine tree. We all know it. I won't say much about it."

"Well, apricot." Professor Xie Gaoyi pointed his left hand and walked over.

The students in the back looked up and began to take notes.

They soon know that such note taking speed can't keep up with the rhythm.

In Professor Xie's words, he kept spitting out new nouns

"Platycladus orientalis."

"These are all Chinese pine."

"The shrub over there is Lespedeza. It seems that there are also Rhamnus microphylla. En, they can be used as traditional Chinese medicine. If they are too far away, they won't pass. If you are interested, you can borrow a telescope from master Lin."

As a result, the telescope worn by Comrade Li, the forest ranger, immediately became a new hot item.

Bai Ling also wants to take a look at the telescope, not only because she is studious, but also because the telescope itself is attractive enough.

However, when she looked at Yang Rui, she didn't move. After thinking about it, she didn't ask for it. If 25 people look at a telescope, they have to wait in line for a while. She would rather follow Yang Rui, even if it's snow treading.

But Yang Rui saw her move and laughed. He took out a small telescope from his arms and handed it to her, saying, "if you want to see it, just use it."

The telescope Yang Rui took out was more than three laps thinner than that of Comrade Lin, the forest ranger. Bai Ling held it up with one hand, which was very relaxed. At the same time, the leather sheath also added good friction, and made the telescope not so cold any more.

Bai Ling was holding a telescope with Yang Rui's body temperature. Her face turned red. Then she raised it and looked in the direction of Professor Xie.

In the winter of northern China, there is always a feeling of desolation in the wild.

But in Bai Ling's eyes, it's thick and warm.

"Yang Rui, did you buy your own telescope?" Monitor Liu Ping'an slowed down, waiting for Yang Rui and Bai Ling in front.

Yang Rui said with a smile, "I borrowed it."

"Oh," Liu Ping An said, "can I use it with my classmates? It won't be broken by you. "

"When Bai Ling has finished watching it, you can change it." Yang Rui doesn't care who has the telescope.

When Bai Ling heard their conversation, she immediately put down her telescope and said, "Yang Rui, don't you look?""I'll see later. I'm not very interested in these plants." Yang Rui came here with a telescope. It was easy. What's more, just entering Badaling forest area, there's really nothing to look at. Only a rookie who takes part in field investigation for the first time will be excited when he hears Pinus tabulaeformis.

When Bai Ling saw that Yang Rui was not modest, she handed the telescope to Liu Ping'an and said, "I'm finished. You can see."

"OK, thank you very much. You can watch it faster." Liu Ping'an excitedly handed the telescope to his classmates, but he didn't lift it to have a look, for fear that others would say he was looking for himself.

There are two telescopes to look at, the speed of alternation is naturally much faster, and the queuing situation is suddenly less.

At this time, Professor Xie was not happy. He slapped his hands and said: "you should pay attention to the trees nearby. The trees in the distance can see better, but the trees near are the focus of today. Only when you are close can you observe the main characteristics of plants. Well, I'll find an example..."

Xie Gaoyi talked about where he thought, When it comes to finding examples in the woods, it's also that he hasn't given big lessons to undergraduates for a while, and he's a little rusty. But on the other hand, he's also an expert and courageous. He's in the woods, and he's still in the North @ Beijing Badaling Forest region. There are so many teaching materials for him.

After walking for two minutes, Xie Gaoyi stopped, opened the marching pot, drank water and said, "let's wait for the students behind. I'll tell you how to pay attention to the main characteristics of plants."

When more than 20 people arrived, Xie Gaoyi paid special attention to Yang Rui's position, deflected his body, and said, "look, there are two trees behind me, one is Pinus tabulaeformis and the other is Pinus thunbergii. We saw Pinus tabulaeformis as soon as we entered the forest area. I also pointed it out to you. Now, what's the difference between Pinus tabulaeformis and Pinus thunbergii?"

80 The college students in the 1980s were very active. Immediately some students raised their hands and said, "the bark of black pine is darker, and the bark of Chinese pine is a little gray."

"Yes, that's why black pine is called black pine." Xie Gaoyi nodded his head and said, "the bark of Pinus tabulaeformis is actually a little red. It's easier to identify when the sun is good."

Inspired, then someone compared and yelled, "the leaves of the black pine are stronger."

"That's right. By comparison, the needles of Pinus thunbergii should be thicker and longer. Pinus tabulaeformis is not only thinner, but also softer and slightly drooping." Xie Gaoyi said that he pulled the pine needles of Pinus tabulaeformis a little bit down and showed them to the public.

Yang Rui's two coughs were used to cover up his almost laughing voice.

Bai Ling first heard the prelude of laughter, and then heard Yang Rui's cough. She couldn't help looking at him with some concern, and said with a smile, "be careful of catching a cold."

"Nothing." Yang Rui gave a soft reply.

In order to avoid disturbing other students, Yang Rui whispered very close to Bai Ling. The temperature in winter is very low, and the warm breath sprays into Bai Ling's ears, which makes her feel itchy and happy.

Even if she had lived in the mountains all her life, she would be very happy with Yang Rui... Bai Ling thought silently that everyone would be distracted.

Seeing this scene, Xu Anqing's eyes would burst.

It's not that he has any idea about Bai Ling, but why is my fair lady always staring at Yang Rui's dish? I'm excellent too, aren't I?

To be honest, Xu anqing didn't want to compare with Yang Rui for some time, especially after the luboding incident, Xu anqing ignored Yang Rui. He tried not to think about it, didn't see Yang Rui, and didn't read the newspapers with Yang Rui's name. So far, everything has gone smoothly.

But he did not expect, a good report field investigation, how and Yang Rui bumped into a piece, and, before the queue seems to have been disrupted.

Xu anqing can accept that Yang Rui is better than himself academically. It's no use not to accept it. However, in terms of male charm, Xu anqing still has a certain degree of self-confidence. Anyway, Yang Rui's family is just a small cadre in the township, which can't be compared with the birth of his senior cadre's children. Girls with a little ambition should be more realistic.

He didn't expect that Bai Ling, a girl in this class, had been fascinated by Yang Rui and didn't look at other people.

"Professor Xie, I think the difference between Pinus tabulaeformis and Pinus tabulaeformis is the most obvious." Xu anqing angrily raised his hand, his observation is better than ordinary people, although the mood is agitated, play everyone to find fault or very stable.

Professor Xie nodded to Xu Anqing and said, "yes, for black pine and Pinus tabulaeformis, there are new buds at the top of their branches every year. The colors of the new buds are different. It's winter now, and it's not obvious. But if you carefully observe these two trees, you should still be able to find the immature pine buds."He pointed to both sides and said: "you see, the pine buds of black pine are white, and the pine buds of Chinese pine are brownish red. Therefore, black pine is also called white bud Gong. This is the biggest difference between the two trees. It's the absolute standard of judgment. "

The students weighed their feet one after another to see it, and others opened their notes and took notes. Now there is no Internet, and fragmented knowledge can only be recorded and sorted out by ourselves. Otherwise, it is very difficult to find a specific Chinese similar book.

Professor Xie had a good impression on Xu Anqing. Standing behind him, he said with encouragement: "in our plant taxonomy, discovering groups, or re dividing groups through research, is one of the most important tasks. If you want to make a difference in this respect, you need to have the same observation. With so many plants, it's hard to say whether there are new species or even new groups that have not yet been found. How can we find them? We now have many scientific methods, but the role of people is still the most important. We are all elite students of Peking University. I hope that some of you will one day discover new species and identify new groups. Therefore, students who are interested in this will cultivate their keen observation from today on. "

Students have nodded, Xu Anqing is eyes light, as if to see a victory over Yang Rui, at least curve victory over Yang Rui road.

……