Holopogon pekinensis is a kind of saprotrophic nutrition orchid. In 2017 it was found in Beijing. It grows under a wooded forest in a ravine at an altitude of 1000m in a mountainous area.
Dr. Mu Xianyun (沐先运) at Beijing Forestry University discovered the rare orchid species in the Yanqing Mountains during a long-term follow-up survey of another rare orchid in Beijing, Cypripedium shanxiense. The new species was officially announced after minor structural analysis, literature inquiries, communication with Russian experts and confirmation by domestic orchid experts.[1]
In 2020, researchers at Beijing Forestry University found it again during a survey of wild plants in the jungle at an altitude of 1,100 meters in the Wulingshan Nature Reserve in Miyun District.[2]
Plant height 18 to 25 cm, root stem multi-meat, cluster growth. Stem upright, light green, no green leaves; flower sequence green, under the white membrane 2 to 3 pieces, each length 2 to 4 cm, the top piece is sliver-shaped; flower sequence axis length 4 to 8 cm, with 5 to 20 flowers, flower sequence axis is light green soft hair; flower flakes shawl pin-shaped, membrane quality, length 6 to 8 mm back slightly hairy; flower upright, radiation symmetry, green, when flowering the tepals are all expanded; flower stalk length 4 to 8 mm, slim, soft hair; sliver near upright, narrow bar, length 3 to 4 mm, width 1 to 1.2 mm, there is a medium vein, the outer side is slightly hairy; the petals have a distinct middle vein, the lip petals do not crack, 3 to 4 mm long, 0.8 to 1 mm wide; the column is upright, 2 to 3 mm long, the flower wire is short, the anther is nearly egg-shaped, 0.4 to 0.5 mm long, the pollen is oval, the ovary is oval, about 5 mm long, is hairy; florescence is in August, fruit period is in September.[3]
This type of flower features are very primitive, the lip petals are not significantly differentiated, and the petals and slivers are similar, the morphological relative species is Holopogon ussuriensis.[4]
Holopogon is closely related to the genus Neottia, which some scholars believe should be classified as a synonym of Neottia, but studies have also shown that it may be close to the Cephalanthera and should be independent (Chen et al., 2016).[5]
Holopogon pekinensis is a kind of saprotrophic nutrition orchid. In 2017 it was found in Beijing. It grows under a wooded forest in a ravine at an altitude of 1000m in a mountainous area.
北京无喙兰（学名：Holopogon pekinensis）为兰科无喙兰属下的一个种。目前仅见于北京延庆区，分布于山区海拔1000m的沟谷内杂木林下。目前仅有1个分布点，共17株，是一种濒危的腐生兰。
植株高18-25cm，根状茎多肉质，成簇生长。茎直立，淡绿色，无绿叶；花序为绿色，下有长2-4cm的白色膜质鞘2-3枚，最上面一片苞片状；花序轴长4～8cm，具5-20朵花，花序轴被淡绿色柔毛；花苞片披针形，膜质，长6-8mm；背面稍被毛；花直立，辐射对称，绿色，开花时花被片全部展开;花梗长4-8mm，纤细，被柔毛;萼片近直立，窄条形，长3-4mm，宽1-1.2mm，有一条中脉，外侧略被毛；花瓣有明显中脉，唇瓣不裂，长3-4mm，宽0.8-1mm；蕊柱直立，长2～3mm；花丝较短；花药近卵形，长0.4-0.5mm；花粉团椭圆形;子房椭圆形，长约5mm，被毛。花期8月，果期9月。
这是一篇與植物相關的小作品。你可以通过编辑或修订扩充其内容。 
