440 MR. C. B. CLARKE ON THE FERNS OF NORTHERN INDIA. 
batum and not with the Ceylon plant (Microgonium bimarginatum, v. d. Bosch), which 
is a point in geographic distribution whether 7. sublimbatum be estimated a species, or a 
var. as in Hk. & Baker, Syn. Fil. 75. Col. Beddome's figure, though given to illustrate 
the North-Indian plant, was not, it is presumed, drawn from a North-Indian example; 
it represents the Ceylon plant. 
2. T. Kunzir, Bedd. Ferns Brit. Ind. t. 286. Frond under 1 in. long, deeply pinnatifid ; 
primary segments 1-3-lobate, ultimate segments linear.— 7' nanum, Hk. & Baker, 
Syn. Fil. 77. Crepidomanes nanum, v. d. Bosch, Hymen. Suppl. 122. 
Assam, Griffith.—Distrib. Andamans. 
A note in the Kew Herbarium on this species runs :—** Very near T. gracile, v. d. 
Bosch, Hymen. Suppl. 23." There is no authentic example of T. gracile for comparison ; 
but from the description it appears very near. 
[Trichomanes parvulum, Poir. (Hk. & Baker, Syn. Fil. 75; Bedd. Ferns Brit. Ind. 
t. 179), is stated by Beddome, in Ferns Suppl. 3, to be a native of North India. There ` 
is no example at Kew thence. ] 
[Trichomanes digitatum, Swartz (Hk. & Baker, Syn. Fil. 76; T. corticola, Bedd. Ferns 
South. Ind. t. 264), is also stated by Beddome, in Ferns Suppl. 3, to be a native of North 
India. The scraps of Griffith were collected, in all probability, in the Malay Penisula; 
and it is not known on what authority Col. Beddome locates the species in North India.] 
3. T. BIPUNCTATUM, Poir. in Encyc. Méth. Bot. viii. 69. Frond tripinnatifid; lips of the 
involucre wider than the tube, ovate-acute or subacute.—Luerssen, Fil. Graeff. 241. 
T. Filicula, Bory, in Duperrey, Voy. Bot. i. 283; Hook. Sp. Fil. i. 124; Carr. in Fl. 
Viti. 344; Bedd. Ferns Brit. Ind. t. 283; Hk. & Baker, Syn. Fil. S1. T. insigne, 
Bedd. Ferns Brit. Ind. t. 284. 7T. plicatum, Bedd. Ferns Brit. Ind. t. 285. Hymeno- 
phyllum Filicula, Willd. Sp. Pl. v. 528. H. densum, Wall. Cat. 171, as to the top 
specimen on the type-sheet. H. alatum, Schkuhr, Fil. t. 135 5.  Didymoglossum Fili- 
cula, v. d. Bosch, Hymen. Jav. 35, t. 26. D. racemulosum, late-alatum, plicatum, 
euphlebium, v. d. Bosch, Hymen. Suppl. 58, 54, 55, 58. 
Himalaya; from Kumaon to Bhotan, alt. 1000-6000 feet, common. Khasia ; alt. 2000-  — 
5000 feet, common.—Distrib. Malay Peninsula, and the tropics of the whole world.—The _ 
Malabar examples from Bombay to Ceylon are somewhat intermediate between the 
. Himalayan T. bipunctatum and the Chittagong T. pyzidiferum, having the lips of the ` 
involucre as broad or broader than long, and rounded. The Himalayan type has the — — 
lips of the involucre ovate subacute, more so even than as shown in Beddome's plate. T 
There is no good line between T. bipunctatum and T. pyzidiferum. 
A T. PYXIDIFERUM, Linn. Sp. Pl. 1561. Frond tripinnatifid ; lips of the involucre wider 
than the tube, obtuse, broader than long, or sometimes almost truncate.—Hk. & 
Grey. Ic. Fil. t. 206; Hook. Sp. Fil. i. 124; Bedd. Ferns South. Ind. t. 7; Hk. & ` 
Baker, Syn. Fil. 81; Benth. Fl Austral vii. 703. P. Schmidianum, Zenk.; Taschner, — 
