1988 CLVI. FILICES. [Polypodium. 



Var. normale, Bail. Bot. Bull. 5. Scales of the rhizome bright glossy-brown, J to Jin. long 

 narrow-lanceolate, fimbriate, cordate at the base. Fronds somewhat membranous. bori ratoer 

 large, in 2 rows between and parallel with the costules, slightly immersed, and torming on tne 

 upper side of frond prominent pustules.--Bail. Litho. Ferns Ql. 167. 



Hab.: Common in tropical localities. 



Var. LinncBi, Bail. Bot. Bull. 5. Scales of the rhizome about 1 or 2 lines long, broadly-ovate 

 with a short acumen from a peltate base. Fronds very rigid. Sori small, scattered, copious, 

 and not showing pustules on the upper side of the frond. — Bail. Litho. Ferns Ql. 168. 



Hab.: Common along the tropical coast. 



On Plate 164 of Lithograms of Queensland Fern.s, is represented the usual form of brown, 

 sessile, stipular frond produced by P. rigidulum, P. quercifolium and other allied species, on 

 Plate 165 is represented an extreme form of the same. 



81. NOTHOL^NA, R. Br. 



(From nothos, spurious, chltma, cloak ; the imperfect indusium). 

 Rhizome tufted. Fronds usually small, once twice or thrice pinnate with 

 small lobed segments. Veinlets forked from a central nerve or from the base of 

 the segment. Sori small at the ends of the veinlets, almost contiguous forming an 

 apparently continuous line within the unaltered margin, which is however more 

 or less curved over them in a young state. 



A small genus ranging over the tropical and warmer temperate regions of the New and the Old 

 World. The genus is closely allied to Cheilanthes, with which it is united by F. v. Mueller and some 

 others, but the recurved margins of the fronds can scarcely be regarded as true indusia. Some 

 modem purists have altered Brown's name to Nothoclcena, but the contraction of chlaina into 

 Lmna, after the example of the Bomans, has been too generally sanctioned by botanists in many 

 other cases, such as Diplolcena, Eriolcena. Miciolana, etc., tc be here rejected.- — Benth. 



Fronds 1 to 3in. high, with few membranous and glabrous undivided or 3-lobed 



pinnae 1. N. pumilio. 



Fropds lanceolate in outline, 3 to lOin. high, once or twice pinnate with 

 pinnatifid pinnse. 



Pinnffi densely covered underneath with more or less woolly scales . . . . 2. N. vellea. 



PinncB densely covered underneath with bristly scales S, N. distans. 



Fronds broadly deltoid in outline, under 6in. high, twice or thrice pinnate, 



sprinkled with rigid bristle-like hairs .4. N.fragilis. 



Fronds from deltoid to lanceolate, somewhat rigid, bipinnate 5. N. Prenticei. 



Fronds 4 to 6in. long, bi-tripinnate, pinnte and pinnules obtuse . . . . ... 6. N. glabra. 



1. N. pumilio (small), R. Br. Prod. 146 ; Benth. Fl. Austr. vii. 773. 

 Fronds tufted, 1 to Sin. high, simply pinnate, with a filiform rhachis. Pinnse 

 few, ovate or oblong, obtuse, 3 to 5 lines long, membranous, without scales, entire 

 or the lower ones with a short lateral lobe on one or both sides, the upper ones 

 confluent. Veins obliquely diverging from the midrib. Sori continuous round 

 the margin except at the base, the margin of the frond at first turned over them, 

 but afterwards flat and not altered in consistence. — F. v. M. Fragm. viii. 175 ; 

 Bail. Litho. Ferns Ql. 171 ; N. paucijuga Bak. Syn. Filio. 515. 



Hab.: Endeavour River, Banks and Solander, N. Taylor. 



2. N. vellea (woolly), R. Br. Prod. 146 ; Benth. Fl. Austr. vii. 773. Fronds 

 tufted, mostly under 6in. long but sometimes 9 or lOin., oblong- 

 lanceolate in outline, pinnate or bipinnate, the rhachis hirsute. Pinnse ^ to lin. 

 long, deeply pinnatifid or pinnate, rather thick, green and hispid above, very 

 densely woolly hirsute and often ferruginous underneath, the lobes or segments 

 ovate or rounded, very obtuse. Sori at the ends of the forked veins forming an 

 almost continuous narrow line round the margin.— Bail. Liiho. Ferns Ql. 171 ; 

 Acrosticlium veHeum, Ait. ; A. lanuginusum, Desf. Fl. Atl. ii. 400, t. 256 ; 

 Notholana lanuginosa, Poir. Diet. Suppl. iv. 110 ; Hook. Spec. Filic. v. 119 ; 



