﻿42 MR. JOHN SCOTT ON THE TREE FERNS OF BRITISH SIKKIM. 



Fig. 2. Portion of the woody framework of the same, prepared by maceration : c, the cont' 



Fig. 3. 



meshes, b. Nat 



same near the base of tlie candex, with the irregularly diRtributed 



vascular bundles (a) in the parenchymatous axis (b), the epidermal la} 



Fiff. 4 



buds (d) 



&• 



regular 



figure. Nat 



ick matting of adventitious roots (/). Nat. siee. 

 axis, which shows a considerable reduction in the diameter of 

 tribution of the vascular system. The references agree with 



upwards, as shown in the higher section (fig. 6) . Nat 



(fi 



ferns 



amerences m the arrangement of the free vascular system in the respective species • fil 7 

 C^alAea sjnnuh.a. near the hase ; fig. 8, higher up on the .stipe ; fig. 9. Alsopkila latehrla '; 

 fig. W Acontam^mns , var. Brunoniana; fig. 11. A. omala; fig. 12. A. c<mom; fig. 13. A. An- 

 dersm.u;^Z-^i- -A. glabra. AU nat. size. 

 Longitudinal and transverse sections of the rhizomes of Acro^tUhwn ,candem. The vascular 



r r ''cr ' '^'"'' "" '^"' '' *° " ^"""^^ ''-^-' -" -cnia?L: ;t 



rarely. The transverse sections exhibit a larger central bundle, ^ith a median ring » zone of 

 The h,ctened bundles, a, correspond with the side of the attachment of the rhizome. 



transTerse 



pulyinus ; b, transverse section of rhizome and 



of rhizome and stipe. Nat 



same 



longitudinal 



*> 



Plate VIII 



showing the large obovate scars, the 



are still 



^^ uuiuvv me scars on the nght hand. Nat 

 Hemitelia decimens 



some 



stipes partially enveloped in the dense mrorT T , '^^=' "'""^ P'^'"^'^'™* '«'^^' "f «'<' 

 loculi are shown around the base of 1 '*7' t"^^*^^ adventitious roots. The stipal 



base, fig. 3. Nat. size. ' "^^^ "■"'^' ^'™-J' ''"* -«- clearly in the detached 



Plate IX. 



of the caude. of A. cntamnan., var. Brun 

 below m the adventitious roots, upwards in 



vascular bundl- 



The scars 



'01 a stipe, showing the basal loculi, which are very 

 &ular shapes. Nat. size. are very 



Trifnrcated apex of the caudex of ^. ornata 



on this species^ 



unlike 



^. .ue owners, originate almost entirely fi-om tl,. 1, r! "'" '" "'^'^ ^P-^cies, unli 



Lnear verticiUate manner, aa shown in [he W Z '**'' '"'^'^'^^ '"^^ 



m 



Plate X 



Kg. 1. Portion of the caiidpY of J ^ . 



near the upper nortinn r.f « . t.„+ 



