Chapter 1113

In the next two hours, the students found four same plants within a few hundred meters around.

Professor Xie's attitude has become more positive and serious.

Obviously, this means that what Yang Rui found is not a special variation. Although whether it is a new species remains to be studied, there is no doubt that it is a species.

In fact, new species are often new mutated species, forming new populations. In the professional academic field, the so-called "evolutionary quiescence" is a complete joke.

Species, including humans, are evolving all the time.

However, to become a new species, the conditions required are not just variation. For taxonomists, the real problem is that the speed of species discovery can't keep up with the speed of species disappearance. Species on the earth are exhausted in order to adapt to the rapidly changing earth.

Xu anqing was also exhausted.

He also walked in the field for two hours. He even saw a plant of echinocephalus from a distance, but it just made him more upset.

He wanted to ask Yang Rui, why do you think this plant is strange?

For Xu Anqing, who grew up in a big city in the south, most of the plants in Badaling forest region are strange. And he can't point to every plant to ask Professor Xie. At least, he can't point to plants tens of meters away to ask Professor Xie.

However, if Xu Anqing is killed, he will not ask Yang Rui.

As a result, the more confused Xu anqing was, the more depressed he was.

Professor Xie sees Xu Anqing's changes in his eyes.

After a while, when the collection of specimens was over and the team was ready to return, Professor Xie Gaoyi took the initiative to come to Xu Anqing and said, "you know, to be a botanist and discover new species is about temperament."

"Yes? What do you mean by the temperament of a botanist? " Xu anqing was confused for a moment.

Professor Xie looked at the distant mountain and said, "some botanists are like glue. No matter how they do field investigation, they can find new species. Some botanists may not have this temperament, but it doesn't mean that they have no way to go."

Xu anqing naturally looks at Professor Xie.

"For example, if a non-governmental person, who has no complete botanical education, discovers a new species or a suspected new species, what should he do?" Professor Xie is good at persuasion.

Xu anqing did not think much of the answer: "it should be to find a professional authority to do identification."

Professor Xie nodded and said, "that's right. But in fact, it is basically impossible for non-governmental people to seek professional institutions for appraisal. "

Xu anqing surprised: "why?"

"Because we don't have enough people to identify these species." Xie Gaoyi calmly said: "do you know how many standards of suspected new species exist in Peking University alone?"

Xu anqing shook his head blankly.

"I don't know, because there are too many," Xie said

Xu Anqing is dumb.

"What I mean by this is that the discovery of new species is not the only way out for botanists, nor is it the most important place. The botanists we need most are capable of identifying and analyzing new plants and specimens." Xie Gaoyi said, "if you have enough identification and analysis ability, you don't have to go out to find new plants. You just stay in the laboratory and sort out the past specimens."

Xu anqing understood and said, "you mean there are two kinds of botanists. One is to do field investigation and discover new species, and the other is to analyze and identify new species."

Xie Gaoyi was stunned for a moment and said, "is that what I mean?"

"Yes."

"You are mistaken." Xie Gaoyi immediately denied it, saying: "botanists should be able to analyze and identify new species. However, when some botanists do field surveys, they always have bad luck and can't find new species. Therefore, it's also very valuable to look up specimens in the laboratory."

Xu anqing wanted to bury his head in the earth, and then asked Professor Xie, who buried it deeper: don't you call me an old scholar?

In Professor Xie's eyes, the old scholar may be a good choice, but for young and frivolous college students, it's no different from death.

At this time, Professor Xie looked at Xu Anqing, who was deeply in thought, and felt that he had perfectly comforted the child. He nodded and said, "if you want to learn botany knowledge in the future, you can come to me at any time."

With that, Professor Xie continued his teaching task, explaining the plants to the students all the way.But different from the past, the students who have just experienced a suspected new species discovery process are not interested in the familiar plants at all. Their eyes are constantly circling around in the wild.

As we all know, the plants on both sides of the mountain road are often seen, and on the surrounding fields, the probability of plants being observed is greatly reduced.

Not long after that, some students called out: "Professor Xie, come and have a look at this plant."

Professor Xie had no choice but to cross the slippery ground, through a piece of grassland, and stoop to observe.

"Lespedeza." Professor Xie bent over for five seconds and straightened up.

The students are still looking at Professor Xie.

"Legumes, Lespedeza." Professor Xie sighed and said, "this is a common shrub in Badaling area."

"Isn't it a new species of Lespedeza?" Some students are not reconciled.

"Look at the branches, the petioles and the short spines. They are all normal." Professor Xie pause for a moment, said: "we say that new species generally have different appearances, and then we have to judge whether these appearances determine the taxon to which the species belongs. Well, we should observe more and accumulate more. "

"Yang Rui didn't find them all." I don't know when, Geng Jian came to Professor Xie and whispered.

Professor Xie sighed and said, "it takes luck and botanist temperament to discover new species. It doesn't mean discovery is the only way."

"Professor Xie, take a look at this." No matter what he said, Geng Jian found a different plant directly in front of him.

Professor Xie turned his head and said, "Lance."

"Why Geng Jian thought for a moment, his face changed slightly, and said: "Professor Xie, I think this plant is different from the plants we have seen all the way..."

"Spear!"

"No... just have a look..."

"It's the holly spear, a shrub." Professor Xie said, adding: "this is an ornamental plant introduced from Japan. There are quite a few cultivated in China."

Geng Jian was speechless for a moment.

"In my opinion, it's getting late. We have to hurry back. Each student can only ask questions once. In addition, it's not allowed to leave the team for 50 meters. Otherwise, I'll record the list and give it to your counselors." Professor Xie quickly came up with a solution, barely easing the situation.

All of a sudden, even the students who don't ask questions can't help it.

Who doesn't want to discover a kind of plant by himself? I'll go out and brag later. At least, I've made contributions to world scientific research. I've sweated, suffered, and had a big peak in my life.

As for Professor Xie, he inevitably fell into the sea of people's war.

He found that he didn't have to explain plants all the way. Almost all the plants passed by were turned out by the students. Moreover, almost all of them wandered 50 meters away, as if the farther away they were from the dirt road, the closer they were to success.

Bai Ling can't help but drag Yang Rui to find a new species.

The two separated from the team and loomed in the woods.