... SECOND SERIES.—BOTANY, VOL. I. 
MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 583 
The Indian form is (so far as I know) always O. interrupta, Michx., i. e. the fertile 
fronds have only a few pinne in the middle fertile. 
2. O. REGALIS, Linn. Sp. Pl. 1521. Frond 2-pinnate; barren and fertile fronds separate, 
or the frond barren below, fertile above.—Schk. Krypt. Gew. t. 145; Engl. Bot. 
t. 209; Bedd. Ferns South. Ind. t. 76; Hook. Brit. Ferns, t. 45; Milde, Monogr. 
Gen. Osmund. 58-88, tt. 1-3. figs. 1-65, Fil. Europ. 175; Hk. & Baker, Syn. Fil. 127. 
O. japonica, Thunb. Fl. Japon. 330. O. speciosa, Wall. Cat. 50. O. Leschenaultii, 
Wall. Cat. 51. 
Kumaon, T. Thomson; Strachey & Winterbottom. Khasia and Bhotan, alt. 4000- 
6000 feet, common, or at least frequent.—Distrib. Mts. of Malabaria, South China, 
Japan. Arctic and North Temperate regions of the world; South Africa, Brazil. 
The common Khasi form is very small, 12-18 in. high only; the fertile and barren 
fronds separate: this is O. japonica, Thunb.,— O. speciosa, Wall. But I have collected 
fronds of this barren below, fertile above. The Malabar plant, O. Leschenaultii, Wall., 
seems altogether identical with the European. 
44. SCHIZÆA, Smith. 
l. S. pierrata, Swartz, Syn. Fil. 150, 380, t. 4. fig. 1; Blume, Enum. Pl. Jav. Fil. 255; 
Mett. Fil. Hort. Lips. 114; Hook. Garden Ferns, t. 49; Carr. in Fl. Viti. 376 ; 
Bedd. Ferns South. Ind. t. 268; Hk. & Baker, Syn. Fil. 430. Actinostachys digitata, 
Wall. Cat. 1. Aerostichum digitatum, Linn. Sp. Pl. 1524. 
 Khasia, Griffith. Chittagong; tropical region, Hook. f. $ T. Thoms.—Distrib. Ceylon, 
Malay Peninsula and Isles to the Philippines and Feejees. 
45. LycopruM, Swartz. 
l. L. crgcrxATUM, Swartz, Syn. Fil. 153. Fully developed barren frond bipartite into 
two palmate lobes or simply palmate; segments long-lanceolate.— Blume, Enum. Pl. 
Jay. Fil. 253; Benth. Fl. Hongk. 441. L. pedatum, Swartz, Syn. Fil. 154. L. dicho- 
tomum, Swartz, Syn. Fil. 154; Wall. Cat. 176; Hk. & Grev. Ic. Fil. t. 55; Bedd. 
Ferns South. Ind. t. 62; Hk. & Baker, Syn. Fil. 437. L. longifolium, Swartz, Syn. 
Fil. 154. Ophioglossum circinatum and pedatum, Burm. Fl. Ind. 221, 228, t. 66. 
fig.1.. O. flexuosum, Linn. f. Suppl. 443; Roxb. in Calc. Journ. Nat. Hist. iv. 477; 
not of Linn. Sp. Pl. 1519. Hydroglossum circinatum, pedatum, dichotomum, longi- 
folium, Willd. Sp. Pl. v. 83, 84, 82. 
Chittagong Hills; C. B. Clarke.—Distrib. Ceylon, Malay Peninsula and Islands to 
the Philippines and Hongkong. 
2. L. MICROPHYLLUM, R. Br. Prodr. 162. Fronds all simply pinnate ; barren pinnze ovate- 
oblong, not acute, margin undulate subentire, or but minutely crenulate ; fertile 
deltoid-ovate, petioled, never pinnated, rarely much lobate.—W all. ro Wm except 
K 
