1956 GLVI. FILICBS. [Lindsmt. 



10. L. lanuginosa (woolly), Wall. ; Hook. Spec. Filic. i. 210, t. 69, Syn. 

 Filic. 109; Benth. Fl. Austr. vii. 722. Epiphyte, rhizome stout, creeping. 

 Fronds 1 to about 3ft. long, simply pinnate, the rhachis densely woolly- tomentose, 

 or the wool at length deciduous. Pinnas numerous, lanceolate, often falcate, 1^ 

 to 2Jin. long, not quite sessile, coriaceous, glabrous above, woolly-tomentose 

 underneath at least when young, the fertile ones almost acuminate, the lower 

 barren ones rounded at the end. Veins simple or forked, diverging from the 

 midrib and all free. Sori continuous along; the margins except the obliquely 

 truncate base. — F. v. M. Fragm. v. 118; Bail. Litho. Ferns Ql. 56. 



Hab.: Eookingham Bay, W. Hill ; Edgecombe Bay, Dallachy ; Port Denison and Daintree 

 Biver, Fitzalan. Forming large masses on the branches of trees in tropical scrubs. 



The pinnae disarticulate so freely in drying that perfect specimens are seldom seen in 

 herbaria. 



Spread over tropical Asia and Africa. 



20. ADIANTUM, Linn. 



(From adiantos, dry, the fronds when plunged into water come out dry.) 



Ehizome creeping or tufted. Fronds compound or rarely simple. Pinnules 

 more or less petiolate, often oblique, the forked or dichotomous veins radiating 

 from the petiole to the margin without any midrib. Sori marginal, short and 

 distinct or rarely elongated and confluent. Indusium continuous with the margin 

 and recurved bearing the spore-cases on its under surface. 



A large genus, widely spread over the tropical and temperate regions of the New and the 

 Old World. 



Fronds simply pinnate. Pinnules on long petioles J to lin. broad. Sori 



almost continuous . . ... . . 1. A. lunulatum. 



Fronds mostly 3-pinnate. Pinnules broadly obovate, nearly equal at the 



base. Indusia reniform . . . 2. A. cefhiopicum. 



Fronds bipinnate or 3-pinnate at the base. Pinnules very oblique or dimi- 

 diate. Bhizome creeping. 

 Pinnse numerous. Pinnules mostly 3 to 4 lines broad. Sori and indusia 



transversely oblong 3. A. Jormosum. 



Pinnffi fewer. Pinnules more equal, 4 to 8 lines broad 



Indusia reniform .... . . i. A. afflne. 



Indusia transversely oblong var. intermedium. 



Fronds with few long almost pedate glabrous pinnse. Pinnules mem- 

 branous, finely veined. Sori in the sinus, reniform. Bhizome tufted 5. A. diaphanum. 

 Fronds more pedate, more or less hispid. Pinnules prominently veined. 



Sori rounded, contiguous. Bhizome usually tufted 6. A. hispidulum. 



1. A. lunulatum (crescent-shaped), Burm. ; Hook. Spec. Filic. ii. 11, Syw. 

 Filic. 114 ; Benth. Fl. Aiistr. vii. 723. Ehizome short. Fronds tufted simply 

 pinnate, 6in. to near 1ft. long, the rhachis wiry, very slender. Pinnules 

 articulate on slender petioles of 1 to 4 lines, obliquely fan-shaped, \ to lin. broad. 

 Sori elongated, sometimes continuous along the whole outer margin, but often 

 more or less interrupted.— Hook, and Grev. Ic. Filic. t. 104 ; Bail. Litho. Ferns 

 Ql. 58. 



Hab.: Bookingham Bay, Endeavour Biver, and a few other tropical localities but not 

 common. , 



Spread over the the tropical regions of the New and the Old World. 



2. A. sethiopicum (^Ethiopian), Linn. ; Hook. Spec. Filic. ii. 37, t. 77, Syn. 

 Filic. 123; Benth. Fl. Austr. vii. 724. Rhizome tufted or stoloniferous. Fronds 

 usually 1 to IJft. high, 4 to 8in. broad, twice three or four times pinnate the 

 rhachis slender shining, often flexuose. Pinnules on short petioles mostly 

 obovate-orbicular with a more or less cuneate equal base, 3 to over 5 lines broad 

 thin and bright green, broadly crenate or very shortly lobed. Sori distinct in the 

 sinus of the crenatures, the reflexed indusium reniform or at length transversely 

 oblong.— Bedd. Ferns 8. Ind, t. 5 ; Hook. f. Fl, Tasm, ii. 187 ; F, v. M Fragm 



