470 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
segments 3 by ¢ in., apex narrower, crenate.—Hook. Sp. Fil. ii. 206; Hk. & Baker, 
Syn. Fil. 165. P. umbrosa, Wall. Cat. 109, as to type sheet, not of R. Br. Cam- 
pteria Wallichiana, Bedd. Ferns Brit. Ind. tt. 25, 217. i 
Himalaya, from Chumba to Bhotan; alt. 3000-8000 feet, very plentiful. Khasia; 
alt. 3000-6000 feet, common.—Distrib. Philippines, Java, Samoa. 
The 5 pinnz of this large fern stand out of one plane, so that the frond is in shape 
half a cup, which character is lost in drying. This fern may be a Campteroid form of 
P. tripartita, as Mr. Baker suggests, but it is not a Campteroid form of P. longipes; ` 
the habit and texture differ; the involucres are narrower, the segments and venation 
different.—A large quantity of the P. wmbrosa in Wallich's own Herbarium is P. 
biaurita, Linn. 
Var. quadripinnata. Main pinne tripinnate quadripinnatifid. 
Darjeeling, C. B. Clarke-—My examples are in fruit.—Don (Prodr. Fl. Nepal. 15) 
divides his Pteris into two sections: a. l-pinnate; b. 2-pinnate. He places P. pectinata 
in the 1-pinnate section, and repeats in the description that the frond was 1-pinnate, the 
pinnæ pinnatifid. Nevertheless Beddome follows Hooker in referring P. pectinata, Don, 
to P. Wallichiana; but I think Agardh must have been right in referring P. pectinata, 
Don, to P. aspericaulis, Wall., i. e. to P. quadriaurita, Retz., as above.—This question of 
the true place of P. pectinata, Don, carries another with it. Mr. Baker having allowed 
that P. Wallichiana, Agardh, is P. pectinata, Don, finds that P. longipes, Don, must - 
have been P. pellucens, Agardh; but Mr. Edgeworth (in Herb.) takes P. Wallichiana, ` 
Agardh, to be the true P. longipes, Don, and, to me it seems, with much probability. > 
Sect. IV. Doryopteris. Veins copiously anastomosing, without free included 
veinlets. Fronds lobate pinnatifid, or scarcely 1-pinnate. 
17. P. LUDENS, Wall. Cat. 88. Rhizome creeping, with linear adpressed scales, dark 
chestnut with whitened margins; stipes solitary, distant.— Hook. Sp. Fil. ii. 210; 
Hk. & Baker, Syn. Fil. 166. P. multifida, Roxb. in Cale. Journ. Nat. Hist. iv. 567, 
not of Poir. Litobrochia pedata and L. ludens, Bedd. Ferns Brit. Ind. tt. 26, 27, 
excluding synonyms. 
Chittagong Hills, alt. 0—1000 feet, Roxburgh, C. B. Clarke. Orissa; Balasore Hin 
Blanford.—Distrib. Malay Peninsula, Ava. P. 
Stipe often with dusky subtomentose pubescence at benc and apex, sometimes with a & 
few scales. Frond glabrous beneath, with shining ribs.—Col. Beddome (in Brit. Ferns, |. 
Suppl. p. 8) proposes, as I understand him, to unite P. ludens and P. palmata undet ` 
P. pedata, Linn. ; but, as Sir W. J. Hooker pointed out (Syn. Fil. ii. 211), all the Burmese ` - 
P. ludens has a long creeping rhizome, whereas (in the large Kew collection of P. pal- 
mata and pedata) the stipes are in every case closely tufted. As to Col. Beddome's fig- — 
of Litobrochia pedata, it does not show the rhizome, but was taken from a Moulmein. Le 
specimen, where P. ludens is common, P. pedata unknown. E 
Wallich’s example from Dindighul marked Pteris mysurensis, referred MH Hooker x 
