ICONES FILICUM SINICARUM 
PLATE 149 
ARTHROMERIS HIMALAYENSIS (Hk.) Ching 
POLYPODIACEA 
ARTHROMERIS HIMALAYENSIS (Hk.) Ching, Contr. Inst. Bot. Nat. Acad. Peiping 2: 
99 (1933). 
Polypodium himalayense Hk. Sp. Fil. 5: 91(1863); Syn. Fil. 369 (1867); Diels in Engl. u. Prantl: 
Nat. Pflanzenfam. 1: 4. 321 (1899); Christ, Farnkr. d. Erde 114 (1897); Bull. Soc. Bot. France 
52: Mém. 1. 19 (1905), pro parte; C. Chr. Ind. Fil. 533 (1905). 
Pleopeltis himalayensis Bedd. Ferns Brit. Ind. t. 318 (1869); Handb. Ferns, Brit. Ind. etc. 372 
(1883). 
_Polypodium venustum Wall. Cat. n. 305 (1828, nom. nud.); Clarke, Trans. Linn. Soc. II. Bot. 1: 
566 (1880), non Desv. 1811. 
Pleuridium venustum J. Sm. Cat. Cult. Ferns 10 (1857). 
Arthromeris venusta J. Sm. Hist. Fil. 11x (1875). 
Polypodium venustum var. niphoboloides Clarke, l.c. 567. 
Rhizome thick, woody, wide-creeping, glaucous, sparcely scaly; scales linear 
from orbicular base, bright brown; frond far apart, stipe firm, glossy, dark 
straminous, 1-15 cm long, glabrous, lamine 20-45 cm long, 15-20 em broad, impari- 
pinnate; pinnx 1-5-jugate, articulated to rachis, opposite, 5-7 cm apart, sessile, 
12-16 cm long, 3-4 cm broad, oblong-lanceolate, caudate, base roundish or sub- 
cordate, margin entire but wavy and provided with a very broad whitish mem- 
brane; texture subcoriaceous, both sides densely glandular hairy, costa under- 
neath with long spread hairs; lateral main veins fine but distinct, areole fine, with 
copious included veinlets; sori large, rounded, irregularly 2-seriate, of 3-4 each 
between main veins, exindusiate. 
This distinct and pretty fern can easily be distinguished from its relatives 
by oblong-lanceolate and caudate, densely glandular hairy pinne with a very 
broad whitish membranaceous margin. 
Yunnan: South of Red River, Manmei, Henry 9747; Tse-tchou-pa, Maire; 
Song-san, Delavay 2612. 
Sikkim-Himalayas, from 6,000 to 10,000 ft. elevation, common. 
Var. furcans Ching, l.c. p. 100. 
Habit of Cyrtomium caryotideum Presl, with irregularly lacerato-forked pinne. 
Known only from Sikkim (leg. Duthie 5177). 
Plate 149. Fig. 1. Habit sketch (natural size). 2. The same (natural size). 3. Portion of 
pinna, showing venation and sori (x 5). 4. Scale from rhizome (x 20). 5. Hairs from costa (x 80). 
6. Glandular hairs from underside of lamina (x 80). 7. MRachis with articulated base of the lateral pinna 
(x Io). : 
