The scientific name is Adiantum lotus leaf.

Chinese name Adiantum lotus leaf

Adiantaceae

Endangered category endangered

Protection level 2

It only exists in Wanxian County and Shizhu County of Sichuan Province. Because of road construction and medicinal excavation, the number is very small and it is on the verge of extinction.

It is distributed in Wuling District, Wanxian County, Xinxiang, Xiaotuo Mountain, Shanshuping and Shizhu County of Sichuan Province.

The soil PH value is neutral and slightly alkaline.

Ecological characteristics are produced on the thin soil layer on the warm and humid rock surface, without shading, cracks or grass.

Flowering period 7

Fruiting period 8-9

The scientific research value is of great value for studying the genetic relationship \ flora and geographical distribution of this species.

The whole grass with economic value is a medicine for clearing away heat and toxic materials, diuresis and stranguria, and it is also ornamental.

Protective measures are designated as protection points for artificial cultivation.

Propagation mode: ramet or spore propagation.

Primitive Guanyin lotus

Scientific name archangiptoris henryi Christ et gies

Chinese name primitive Guanyin lotus

Guanyin (Liliaceae)

Endangered category endangered

Protection level 2

The present situation only exists in the southeast of Yunnan, which is endangered because of the shrinking forest area and the change of habitat.

Distributed in Jinping, Pingbian, Yunnan Province and counties.

Soil PH 4.5-5.5

Soil type lateritic red soil or red soil

Topographic features: the edge of the valley under the hillside.

Ecological characteristics: wet habitat of seasonal rain forest.

Flowering period 7-8

Fruit period 1 1

Scientific research value is of great value for studying the evolution \ floristic origin of pteridophytes.

Shady ornamental plants with economic value

Protection measures have been designated as nature reserves, and the management system needs to be improved as soon as possible.

Breeding mode spore reproduction; Cultivated seedlings

Cultivation needs to choose a humid and warm ecological environment.

Split fern

Scientific name Phyllitis japonica Kom.

Chinese name: Schizophyllum.

Pteridaceae; Arachnaceae.

Endangered category rare protection level 2

The present situation only exists in the south foot and west side of Changbai Mountain in Jilin Province, with sporadic distribution.

Distribution provinces and counties Jilin Changbai Korean Autonomous County, Ji 'an, Fusong and Huadian.

The distribution describes the Soviet Union, Korea and Japan.

The climate type is cool and humid.

The annual precipitation is 946, and the soil PH value is acidic.

Soil type Dark brown forest soil

Ecological characteristics of humus layer under deciduous broad-leaved forest in mountainous area, which is humid.

Scientific research value fills the gap of geographical distribution and is valuable for studying plant geography \ flora.

Ornamental plants with economic value

Protective measures to protect the origin, find out the existing quantity, and plant in the protected area.

Mode of transmission Spore \ Meridian transmission

Pteris glabra

Scientific name: Dryopteris flavescens

Pteris glabra

Athyridaceae

Endangered category Endangered protection level 2

Due to deforestation and habitat change, the number is very small and is on the verge of extinction.

Distributed in counties of Sichuan Province, from Yuanyang Rock to Tuanniuping in Erlang Mountain, Tianquan.

The climate type is wet and foggy all the year round, with more rain and less sunshine.

Annual precipitation 1800-2000

Soil PH 4.5-5.5

Soil types: mountain yellow soil and mountain yellow brown soil.

Topographic features: mountainous areas on the western edge of Sichuan Basin.

Ecological characteristics of shady forest

Community characteristics of evergreen deciduous broad-leaved mixed forest in subtropical mountainous area

Associated seed Quercus pumila Rehd. Etwils。 Castanopsis lanceolata Etwils。 Davidia involucrata black birch

Flowering period 7-8

Fruit period 9

It has important scientific research value for the study of pteridophyte hybridization and phylogeny of this family.

Protective measures to protect the country of origin, as far as possible artificial breeding.

Propagation mode: ramet or spore propagation.

Tree fern

The scientific name is slim. exhook。 ) Tyrone

Chinese name thorn grass

cyatheaceae

The protection level of endangered species is 1.

At present, due to the shrinking of forest vegetation coverage, dry habitat, cutting stems for medicine and planting epiphytic orchids, plants are decreasing day by day.

Distributed in provinces, cities and counties, Fuzhou and Anxi, Fujian; Taipei City, Taiwan Province Province; Guangdong Lianshan, emerging; Hainan Qiongzhong; Guangxi Longsheng; Ceheng, Guizhou, Chishui; Gongshan, Guangnan, Yunnan; Hejiang, Sichuan, Qionglai; Tibet medog

Distribution description of southeast and south Fujian; Northern Guangdong; South; Southern Guizhou, northern Guizhou; Southeast Yunnan, west; Southern and central Sichuan; Southeast Tibet, Nepal, Sikkim, Bhutan, India, Myanmar, Thailand, Vietnam, Philippines, southern Japan.

Climate type: subtropical humid monsoon climate, warm in winter, early in spring, hot in summer, rainy in autumn, high humidity, more clouds, less sunshine and obvious dry and wet seasons.

Acidity of soil PH value

Topographic features: wet slopes in canyons

Ecological characteristics: along streams or in sunny places of forest-edge shrubs.

Community characteristics: dozens or hundreds of plants form a dominant community.

Flowering and fruiting period

Scientific research value is an ideal object to study the relationship between speciation and geographical distribution of plants.

Economic value of viewing

Protection measures take Sichuan as the key protected area, carry out breeding research and expand the distribution area.

Propagation mode tissue culture method

Cultivation requirements are suitable for fertile sandy soil with good air permeability and water permeability.

Pen tree

Scientific name sphaeropteris lefera(hook. ) Tyrone

Chinese famous pen tree

cyatheaceae

There are few endangered species.

Protection level 2

The present situation only exists in Taiwan Province Province, and there is a plant in the ravine near the tap water pool of Xiamen University. Its habitat is not hidden, easy to be destroyed, and there are no seedlings under the forest.

Distributed in Taiwan Province Province, Taibei, Yilan, Taoyuan, Nantou, Hualien, Pingtung and Taitung; Xiamen City, Fujian Province

Distribution Description: Gullies near the tap water pool of Xiamen University in Japan, Philippines.

Climate type: rainy in spring, typhoon and rainstorm in summer, sunny and rainy in autumn and winter, dry habitat.

Topographic features: Canyon, with a slope of 15 to the south and west.

Ecological characteristics: high air humidity and humid land environment.

Community characteristics The cemetery under broad-leaved forest is about15m high and covers 70% in the deep ditch eroded by rain.

Acacia formosana, a companion species of Acacia formosana.

Florescence 4 10

This is of great scientific value for studying the relationship between the flora of Chinese mainland and Taiwan Province.

Economic value horticultural ornamental plants

Protection measures to observe the development cycle, determine the indicators of various ecological factors, and expand cultivation.

Breeding mode spore reproduction; Tip tissue culture

Jade dragon fern

The scientific name Sorolepidium glaciale Christ

Chinese name Yulong fern

Other families Dryopteridaceae

There are few endangered species.

Protection level 2

Occurred in the mountainous areas adjacent to Tibet, Yunnan and Sichuan provinces, scattered near the edge of glaciers and the snow line.

Distributed in Bomi, Tibet, provinces and counties; Lijiang, Yunnan, Zhongdian; Sichuan Muli Daocheng

Distribution describes eastern Tibet; Northwest Yunnan; Southwest Sichuan

Climate type: lack of heat in mountainous areas, strong radiation, strong wind, large temperature difference between day and night, and bad climate.

Topographic features: a rocky beach consisting of exposed rocks, cliffs and gravel, that is, the lower edge of alpine glaciers.

Ecological characteristics of alpine frozen desert area

Scientific research value: a good material to study the unity of fern morphology and function.

Protective measures mountaineering explorers should not collect in large quantities.