CYATHEAE 605 
Fic. 336. 
Alsophila pruinata, Kaulf. Transverse sections ot stem, leaf-Lases, and bud (a) in 
Figs. 3 and 4; it is apparent that the axis is'solenostelic, that the solenostele opens at 
the exit of each leaf, and that the leaf-trace is a continuous horse-shoe at its base. (After 
H. Karsten.) 
Fic. 337 4. 
5 wrayana, Hook. A=axile longitudinal section. Natural size. The section 
Bs eu oer thick, and semi-transparent. The black stereom and paler vascular 
strands drawn as superficial do not all lie exactly in the same plane. a=vascular strands 
of the main cylinder; s=outer ; s’=inner plates of its selerotic sheath ; internally to sy, is 
the pith with its medullary strands, outside s, the cortex with cortical strands; eel 
cortical bundles ; 4=leaf-scars ; 2=strands passing into leaves ; w=insertions of roots ; 
m=a foliar strand running into the pith; above x a blind ending of a medullary bundle. 
(After De Bary, from Engler and Prantl, Vaz. Phlanzenfam.) 
