﻿MR 



SCOTT ON THE TREE FERNS OF 



SIKKIM 



5 



Those marked * are all found in the vicinity of Calcutta 



Gleichenia dichotomaj Willd, 

 Dicksonia scabraj JValL 

 Lindsaya lanceolata^ Lab. 

 *Adiantum caudatum, Linn. 



Nephrodium pennigerunij Hook 

 molle^ Desv. 



* 



— - lunulatum^ Burm. 

 Cheilantlies tenuifolia, Sw 

 varianSj Hook. 



■^Nephrolepis cordifolia. Baker. 

 ■^^Polypodium proliferum^ PresL 



farinosa^ Kaulf. 

 argentea^ H.^ K. 





t 



Onychium auratum, Kaulf. 

 *Pteris longifolia^ Linn. 



crenata, Sw. 



aquilina^ Linn. 



var. lanuginosa^ Hook 

 biaurita, Linn. 



irioideSj Lam. 

 quercifolium, Linn. 



punctatum^ Thunh. 



var. rugulosum^ Labill 

 Vittaria lincata^ Sw. 

 *Acrostichum scandcns^ J. Sm. 

 '^Lygodium dicliotomumj Sw. 

 scandens, Sw. 



* 



*Ceratopteris tlialictroides, Brong 

 Blechnum orientale^ Linn. 



*Aspleniuin esculentum^ PresL 

 Nephrodium extensunij Hook. 



* 



pinnatifidum, Stt\ 



japonicunij Sw. 



Ophioglossum nudlcaule^ L. fil 



vulgutum^ Linn, 



Lycopodium cemunnij Linn. 

 Selagmella imbricata, /. Scott. 



-. t 



• semicordata, /. Scott. 



The Gleichenia dichotoma, though very generally distributed in the tropical and 



tropical regions of both hemispheres, and 



extending to temperate altitudes 



Sikkim, where it is found at elevations of 5000-6000 feet, is rarely seen in the plains of 

 Bengal. In the present instance it is not at all uncommon, forming on dry banks near 

 the Julpigoree road a dwarf rigid scrub (on which the goats browse) from 1 to 2 feet or 



so in height. In the moister and shadier 

 branches of shrubs to the height of 6 feet. 



ascends amongst 



localities adjoining, it 



In the latter habitats it is usually associated 

 with Dicksonia scabra, Lindsaya lanceolata, Lygodium dlchotomum, japonicum^ and 



The latter species is especially abundant and extremely ornamental, com- 



scandens. 



pletely enveloping many of the shrubs, and 



small trees 20 feet in height 



Chei 



lanthes tenuifolia^ varians, and C, farinosa are locally abundant on many of the dr 



banks of the Julpigoree roads 



auratum. JPteris aquilina, va 



inally interspersed with a few plants of Onychiv 



lanuginosa, I found only in the 



of 



old brick 



building near the banks of the Mahanudi. In similar habitats, JPoly podium pwictatum 



var. rugulosum (which in all 

 species), is by no means rare, 

 rainy season 



spt the fructification so much resembles the last 



Ceratopt 



thaUctroides is an annual, frequent 



in excavations by the sides of the roads &c. ; and very frequently the 

 banks of these are covered with the drooping branchlets of the Lycopodium cernuuin, 

 and more rarely with patches of the above-named Selaginellce. Both the latter are 



in the cold season. 



% 



strictly plants of the rainy season, or at least disappear eai 

 Ophioglossum nudicaule seems to be an exceedingly rare plant, and was found by 

 only on dry sandy banks near the Mahanudi. O. vulgatum (if really distinct from 

 latter) is of more frequent occurrence in moist and shady lands. These plants, howe 



