Cheirostylis yei J.D. Ya, Z.D. Han & H. Jang 2021 - A. Plant; B. Rhizome; C. Inflorescence; D. Flower (front view); E. Flower (dorsal view); F. Flower (lateral view); G. Bract; H. Adaxial sepals and petals; I. Abaxial sepals and petals; J. Column and labellum; K. Labellum; L. Labellum (rip cutting); M. Column; N. Pollinarium.

LCDP Photo by Ji Dong Ya

LATE

Common Name Ye's Cheirostylis [Mr. De-Ping Ye Chinese botanist 1977-2020]

Flower Size .2"[5 mm]

Found in Yunnan province of China in forests on limestone at elevations around 1470 to 1900 meters as a mini-miniature to small sized, cool growing lithophyte with an almost vertical, white to green, 3 to 5 noned, totrose to moniliform, rhizome giving rise to an erect stem carrying 2 to 5, congested, often withered at blooming, ovate to ovate-lanceolate, glabrous, acute, cuneate below int o the petiolate base leaves that blooms in the fall on an erect, peduncle 2.8 to 4.4" [7 to 11 cm] long, hairy, provided with 2 to 3 sterile bracts, rachis short to .4" [1 cm] long, 4 to 7 flowered inflorescence with ovate-lanceolate, abaxially hairy, long acuminate, nearly as long as the ovary floral bracts.

"C. yei is similar to Cheirostylis chinensis Rolfe, C. yunnanensis Rolfe and C. moniliformis (Griff.) Seidenf. in floral morphology. The new species can be distinguished from C. chinensis by having epichile lobes with irregular, undulate margins (vs. 4- or 5-dentate, teeth triangular and acute), a subquadrate callus without teeth (vs. calli comb-like with 5- or 6-toothed), and oval viscidium (vs. narrowly oblong). It can be distinguished from C. yunnanensis by having a long 3.87.2 cm stem (vs. usually less than 1 cm), smaller flowers with a 4.5 mm long lip (vs. 912 mm long), and a subquadrate callus without teeth in the saccate hypochile (vs. calli comb-like with 3- or 4-toothed). The new species can be distinguished from C. moniliformis by having pubescent ovary and sepals (vs. glabrous), a subquadrate callus in the saccate hypochile (vs. 24 papillae-like calli), and long elliptic stelidia (vs. falcate- or linear-lanceolate)." Ji-Dong Ya etal 2021

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; *New contributions to goodyerinae and dendrobiinae (orchidaceae) in the Flora of China Ji-Dong Ya, Ting Zhang, Tirtha Raj Pandey, Cheng Liu, Zhou-Dong Han, De-PingYe, De-Ming He, Qiang Liu, Lan Yang, Li Huang, Rong-Zhen Zhang, HongJiang, and Jie Cai 2021 Photo fide;

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