582 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA, 
persons have got it from that locality since, and it has been much thinned there. I am 
not aware that it has ever been obtained from any other place. 
Subgenus V. CArysodiwm. Veins anastomosing copiously, without free veinlets, 
Fronds simple or pinnate, imperfectly dimorphous, 
14. A. AUREUM, Linn. Sp. Pl. 1525. Fronds l-pinnate; uppermost pinnse soriferous, 
scarcely smaller than the lower barren pinnee.—Schk. Krypt. Gew. t. 1 & 145; 
Hook. Sp. Fil. v. 266; Wall. Cat. 31; Bedd. Ferns South. Ind. t. 204; Hk. & Baker, 
Syn. Fil. 423; Benth. Fl. Austral. vii. 779. A. emarginatum, Roxb..in Cale. Journ, 
Nat. Hist. iv. 480, t. 27. A. speciosum and inequale, Willd. ; Blume, Fl. Jav. Fil, 
40, 42, tt. 16, 17. A4. daneefolium, Langsd. & Fisch. Pl. Voy. Russ. 5, t.1. Chryso- 
dium fraxinifolium, D Urvillei, sculpturatum, and Cayennense, Fée, Ze: Mém. Foug. 
tt. 62, 60, 61, and 59. CO aureum, Carr. in Fl. Viti. 375. 
Lower Bengal, common.  Abundant in the Soonderbun; and I have collected it in 
the streets of Caleutta.—Distrib. Tropical shores, nearly throughout the world; a fern 
that likes sea-air. 
Subgenus VI. Hymenolepis. Veins anastomosing copiously, with many free veinlets. 
Fronds linear, simple, soriferous on the contracted apex. 
15. A. sPICATUM, Linn. f. Suppl. 444.  Soriferous part of the frond less than } in. broad. 
—Smith, Ic. Ined. t. 49; Hook. Sp. Fil. v. 280; Hk. & Baker, Syn. Fil. 424; Benth. 
Fl. Austral. vii. 780. Hymenolepis spicata, Presl; Hook. Fil. Exot. t. 78; Bedd.  . 
Ferns South. Ind. t. 46. H. ophioglossoides, Kaulf. Enum. Fil. 146, t. 1. fig. 9; 
Kunze, Farnkr. Schk. Suppl. t. 47. fig. 1. H, revoluta, Blume, Enum. Pl. Jav. Fil. 
201; Kunze, Farnkr. Schk, Suppl. t. 47. fig. 2. Gymnopteris spicata, Presl; Tent. 
Pterid. 244, t. 11. fig. 7. 
Sikkim and Bhotan, alt. 4000-7000 feet, common.  Khasia, alt. 3000-5000 feet, 
common.—-Distrib. Ceylon, Queensland, South China, Polynesia, Madagascar. 
The sori are mixed with linear clavate sporangiasters, some of which are flat-headed. 
This differs no more from Drymoglossum than does Drynaria coronans from D. querci- 
folia, and less than does L. Filiz-Mas from L. cochleata. 
43. OsMUNDA, Linn. * 
1, O. CLAYTONIANA, Linn. Sp. Pl. 1521. Fronds 1-pinnate; pinnæ deeply pinnatifil ` ` 
the uppermost and lowest barren, some of the intermediate fertile—Schk. Kryp^ — 
Gew. t. 144; Bedd. Ferns Brit. Ind. t. 187; Hk. & Baker, Syn. Fil 126; Milde, —— 
Monog. Gen. Osmund. 101-109, tt. 3, 4. figs. 77-100, Fil. Europ. 183. O. monti- 
cola, Wall. Cat. 52, . O. interrupta, Michx. Fl. Am.-Bor. ii. 278. me 
Himalaya, alt, 6000-10,000 feet; from Kashmir to Bhotan, frequent. Khasia; alte 
4500-6000 feet, frequent.—Distrib. North America, Arctic and Temperate. p 
