Huperzia appressa (Desvaux) Á.Löve & D.Löve

Alatanzhula, Yue Xin, Zhao, Liqing, Gundegmaa, Vanjil, Yao, Zhenyu & Ri, Xu, 2025, A new Carex L. variety and ten new records from China and Mongolia, Adansonia (3) 47 (10), pp. 157-170 : 165

Huperzia appressa (Desvaux) Á.Löve & D.Löve

( Fig. 6D, E)

Botaniska Notiser 114: 34 ( Löve & Löve 1961). — Huperzia selago subsp. appressa (Bach.Pyl. ex Desv.) D. Löve, Botaniska Notiser 109: 164 ( Löve & Freedman 1956). — Huperzia selago var. appressa (Bach. Pyl. ex Desv.) Ching , Acta Botanica Yunnanica 3: 303 ( Ching 1981).

TYPE MATERIAL. — France • Without location; without date; La Pilaye B.de s.n.; holo-, P[P00263092].

ETYMOLOGY. — The specific epithet refers to the leaves being appressed to the stem.

DISTRIBUTION AND HABITAT. — It is distributed from the subarctic to the Himalaya ( Zhang & Iwatsuki 2013). GBIF recorded that H. appressa was distributed in Mongolia in 2001, and included photos of the plant specimens ( GBIF 2024). However, it was not listed as being present in Mongolia in POWO ( POWO 2024), nor does it appear in the most recent list of Mongolia's vascular plants ( Baasanmunkh et al. 2022). In 2017, our collection of this species in Uvs province, Mongolia, supported its presence in the region.

ADDITIONAL SPECIMENS EXAMINED. — Mongolia • Uvs, Kobdo sum, hilly area; 16.VII.2017; L.Q. Zhao et al. M17-7147; HIMC[ HIMC0014772 ] ! • Bayan-Ulgii ; 28.VII.2001; Kamelin R.V. et al. s.n.; ALTB[ ALTB1010003598 ] (photo!) .

TAXONOMIC NOTES

Huperzia appressa is morphologically similar to H. selago , which is known to occur in Mongolia. In our Mongolian collections, the plants displayed gemmae distinctly distributed along the entire length of the annual shoot increment ( Gilman & Testo 2015). Based on relevant literature ( Björk 2020), we have confirmed the identification of these specimens as H. appressa .