116 



1^-2 in. 1. ; f ronds 3-6 in 1. 2|-3£ li. w., subcoriaceous, naked, glossy, 

 the upperside dark green, the under pale or glaucous ; the apex entire, 

 the lower part slightly narrowed, cut throughout to the slender black 

 rachis into wide shallow alternate rounded lobes which are close and 

 fully adnate at the base, 2 li. w. and 1-1^ li. d. ; veins 2-4, simple, 

 hardly reaching the margin ; sori 2-4 to each segment, dorsal on the 

 Terns. 



P. subcrenatum, Hook. Icon. Fil. t. 719. P. flabelliforme, Swartz, 

 Jamesonia adnata, Kze. 



Abundant on boughs of trees on Blue Mountain and all the peaks- 

 above 6,000 ft. altitude. Well marked by the very free creeping root- 

 stock, which interlaces so much that the scattered fronds form a well 

 furnished mass, and the broad shallow segments, wider than deep, 

 nearly half-round in shape, and that form a zigzag line from one side 

 to the other of the frond intersected by the slightly flexuose wiry rachis. 

 The absence of vestiture and the dorsal situation of the sori are also 

 characteristic features. 



18. P. saxicolum, Baker. — Stipites few, tufted from a black, shortly- 

 elongated, slender rootstock, erect, wiry, ^-1 in. 1., dark puberulous and 

 clothed sparsely, with short spreading hairs, narrowly margined above ; 

 fronds erect, 2^-3^ in. 1. 3-5 1. b. subcoriaceous and stiff ; dark green 

 on the upper side, pale beneath; ciliate, chiefly on the thin sub-reflexed 

 margins and the rachis; gradually narrowed both ways, pinnatifid vir- 

 tually to the black thread-like rachis ; segments alternate, entire, hori- 

 zontal, oblong, or the lower and upper ones sub-deltoid, rounded, the 

 base broad and fully adnate, barely confluent, 1^-2^ li. 1. 1-1| li. b. ; 

 veins obscure, simple, short, 2-4 to a segment, reaching hardly more 

 than half way to the edge; sori terminal, also 2-4, densely bristling 

 with stifl dark brown hair6 that are mixed with the sporangia. — Journ. 

 Bot. 1877. p. 264. 



Frequent in the moister parts of the forest on the slopes of the ridges 

 and peaks at 6,000-7,000 ft. alt. generally growing on rocks, scattered 

 in beds of moss, a plant here and there ; less frequent on the branches 

 of trees. When growing, the fronds have a blueish tinge on the upper- 

 side. Mostly it is found with one or two perfect fronds and two or 

 three broken ones. Its nearest affinity is with moniliforme, but in this 

 the pinnte are deeper than broad, just the reverse of the rule in that, and 

 their rootstocks are quite different, separating them remotely. The 

 roots spread horizontally through the mossy surroundings and throw 

 up young plants from them. The densely setiferous condition of the 

 sori is a good distinguishing charaoter. Gathered also at the same ele- 

 vation in Gruiana. 



19. P. albopunctatum, Baker. — Stipites tufted from a slender shortly 

 elongated black rootstock, \-\ in. 1., filiform, dark ciliate ; fronds ligu- 

 late, membranous, pellucid ; thinly ciliate, chiefly beneath and on the 

 rachis and margins, pallid green ; 2-5 in. 1. in. b., reduced at the 

 base ; cut to the filiform black flexuose rachis into close horizontal ob- 

 long or rarely roundish segments, which are l|-3 li. 1. 1-1^ li. b., ad- 

 nate-decurrent at the base, often slightly constructed on the upper side 

 and rounded at the point ; margins even or serrulate-repand ; veins 

 simple, much short of the margin, often only spur-like, with the dark 

 brown sori terminal upon them, 1-3 to a side, the midveins often also 



