8. Pteeis.] 2. POLYP ODIACBM. [1. Gleichenia. 



along the marginal nerve, excluding the tips of the lobes. 

 Indusium marginal. Lowest pinnse strongly produced on 

 the lower side, with sometimes bipartite secondary depending 

 pinnea. Veins all free np to the margin, or the lowest 

 uniting with those from the adjacent costae. 



1. P. biaurita, L. Syn. Campteria biaurita, Bedd. 



A handsome fern with a rather stout erect caudex and 

 fronds 3-4 ft. long including the stipes. Pin n 83 all deeply 

 pinnatifid, lanceolate caudate, lowest pair 2-fid with the basal 

 segment reflexed. 



Near watercourses. ^ Fr. April-May. 



Stipes l-J-24 ft. naked and polished except at the base. Pinna 8-11 

 pairs snb-opp. 8-12" long by l|-2 7 . Lobes oblong entire, veins bifurcate, 

 the lowest uniting with the adjacent ones from the next costa, 



2. P. longifolia, L. has simply pinnate leaves with simple linear or 

 linear-lanceolate pinnae. 3. P. pellucida, Presl., has pinnate leaves with 

 the lowest pinnae usually 2-fid. The veins are free in both. 

 ~ To the genua Cheilanth.es, or Silver ferns, belong two species, both 

 common. C. farinosa, Kaulf. has the leaves quite white boneath. 

 C. tenuifolia, Sw., Nanha Dodhari, S. is less coriaceous and the leaves 

 green beneath ; it is used by the Santals when sickness or disease arises 

 attributable to witchcraft or the Evil Eye.— Campbell. 



Adiantum lunulatum, Burn. Dodhari, S. is a maiden-hair fern 

 with simply pinnate leaves and fan-shaped leaflets 1-1§* diam. on slender 

 black petiolules ff ' l° D g- -A decoction of the root is given in throat 

 affections, Camp. Very common. 



A. caudatum, L. has wiry pinnate fronds often rooting at the tips. 



FAM. 3. GLEICHEHACEJS. 



1. Gleiclienia, Sm. 



Ferns with a creeping rhizome, richly dichotomously- 

 branched fronds not tufted on the rhizome, ultimate blanching 

 pinnate or pinnatifid. Proliferous shoots frequent from the 

 froks. Veins free, forked from the base. Sori small dorsal, 

 indusium 0. Sporangia sub-sessile 2-valyed opening across 



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