542 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
in a single row on each side and close to the midrib.—Hook. Sp. Fil. iv. 156; 
Bedd. Ferns South. Ind. t. 91, Ferns Brit. Ind. t. 264; Hk. & Baker, Syn. Fil. 
302; Luerssen, Fil. Graeff. 196. O. mus@folia, Kunze ; Hk. & Baker, Syn. Fil. 302. 
Aspidium neriiforme, Swartz; Blume, Enum. Pl. Jav. Fil. 140; Kunze, Farnkr. 
Suppl. to Schk. t. 18. A. Wallichianum, Wall. Cat. 373, partly; Bélanger & Bory, 
Fl. Ind. Or. Krypt.t. 5. .A4.muscfolium, Blume, Enum. Pl. Jav. Fil. 141, with many 
others; see Mett. in Ann. Mus. Lugd. Bat. i. 240, 241. 
Himalaya, from Nepaul eastwards ; and Khasia ; alt. 2000-5000 feet, common.—Distrib. 
South India, Ceylon, Malaya, Polynesia, Central America. 
A scandent fern; when well developed with pendent main stem, the lateral stipe- 
bearing spurs grow upwards. The type of O. neriiformis and O. mus@folia may be 
found growing on one stem: the upcurved spurs often carry large fronds. 
2. O. WALLICHII, Presl, Tent. Pterid. 78. Scales of the rhizome linear, spreading, except 
very near the extremities; stipes scattered, 0-3 in., sometimes with ovate deciduous 
scales; frond soft, more or less hairy, the rhachis beneath hairy or scaly, rarely 
glabrous, base rounded or tapering; sori in a single row on each side and near the 
midrib.— Hook. Sp. Fil. iv. 158; Bedd. Ferns Brit. Ind. t. 265; Hk. & Baker, Syn. 
Fil. 8083. Aspidium Wallichii, Hook. Exot. Fl. t. 5. A. Wallichianum, Wall. Cat. 
373, partly. Newronia asplenioides, Don, Prodr. Fl. Nep. 6. 
From Gurwhal to Bhotan and Khasia; alt. 2000—7000 feet, common. 
3. O. Cuminet, J. Smith; Hook. Sp. Fil iv. 158. Scales of the rhizome lanceolate 
subulate, closely adpressed; stipes scattered, 2-6 in.—Bedd. Ferns Brit. Ind. t. 195; 
Hk. & Baker, Syn. Fil. 303. 
Assam, Griffith.—Distrib. South India, Ceylon, Malaya, Hongkong, Philippines. 
Griffith’s specimen is without an original ticket, and may be (I think probably is) from 
Malacca or thereabout. The species is very near O. Wallichii; there is no distinction 
in the hairiness or position of the sori: O. Wallichii is more often hairy than glabrous; 
O. Cumingii sometimes has the sori quite close to the midrib. - 
32. Potypopium, Linn. 
Desmobryoid series. Stipes continuous with the rhizome. Sori across the veins. 
Subgenus I. Phegopteris. Veins all free. 
— * Frond 1-pinnate or sub-2-pinnate. 
1. P. Scorrir, Bedd. Ferns Brit. Ind. t. 345. Stipes tufted, with many ineat eau 
brown-black scales; frond 1-pinnate, main rhachis with hair-like scales; pinnz 
alternate, 6-7 approximated pairs, ovate-oblong, obtuse, falcate, serrate, glabrous 
except a few weak setze or scales on the veins beneath. 
Sikkim; Government Cinchona Plantation, alt. 2000 feet, J. Scott. 
Unknown at Kew: the above abstracted from Beddome, who observes neos Brit. 
