ae CHARACTERS OF TRIBES AND GENERA, 
(v v); L. glabella (A. Cunn.) (v v.) ; L. hirta (Sw.) (v v.) ; 
L. deparioides (Hook.) (v v.) (Diclisodon, Moore). 
4.—ViLLOSUM (nov. 
Fronds tripinnate, 12 to 18 feet long ; stipes thick, palea- 
ceous; pinnee 2 to 2 feet long, lanceolate acuminate, deeply 
pinnatifid, segments entire or pinnatifidly lobed ; ultimate 
lobes unisorus, Indusium almost peltate (Megalastrum 
J. Sm.) 
L. villosa (Sw.) (v v.). 
"This is a native of the West Indies and Tropical America, 
and is described by the collectors, Wilson and Purdie, as 
having fronds 10 to 18 feet in length; the height of the 
stem is, however, not stated. In 1864, two plants in the 
Kew collection received from J amaica, were producing fronds 
5 to 6 feet in length, rising from a thick caudex, which 
had every appearance of in time becoming arboroid. 
Although this species technically agrees with Lastrea in 
venation and character of the sori, the large fronds, and 
arboroid character of its stems, seems sufficient to warrant 
its being worthy to be ranked as a distinct genus. 
Sect. 2.—Vernation sarmentose, Fronds more or less distant 
: (Thelypteris). 
* Sarmentum hypogeous, naked. 
L. palustris (J. Sm.) (v v.); (Thelypteris palustris, Schott, 
Polypodium Thelypteris, Linn.); L. squamulosa (Schlect.), 
Ozs.—In the “ Species Filicum ” this is made a synonym 
` of the preceding, but I consider it sufficiently distinct to 
rank as a species. It is a native of South Africa, while L, 
palustris is a native of Europe. 
L. Noveboracensis (Línn.) (v ei 
