38. ASPU2«IUM, §§ EUASPLENTUM. 103 



the apex, narrowed below to a subtruncate base, the margiii nearly entire ; 

 texture snbcoriaceons ; veins oblique, oecasionallj branched, ^ in. apart ; son 

 reaching from the midrib nearly to the edge. — Hi. Sp. 3. p. 87. 



Hab. Kji, Samoa, and Aneitenm. Differs from tbe last by its more obliqne and more 

 distant veins and longer and scaly stems. According to Kuhn, this is the amboinensc 

 of Willdenow. 



14. A. simplicifrons, F. Muell. ; rhizome scaly; fr. snbsessLle, narrowed 

 gradually towards both ends, 12-18 in. 1., |-1 in. br., the edge entire or very 

 slightly nndulated, the point acnminate ; texture subcoriaceous ; veins almost 

 horizontal, paraUel, simple, or forked, 1 lin. apart ; sori not touching by a space 

 either edge or midrib. — Fraffm. 5. p. 74. 



Hab. Sockingham Bay, Australia. — DaMadiy, SiU. 



15. A. GriffitManum, Hk. ; st. tufted, short, erect ;^. lanceolate, 6-9 in. 1., 

 J-1 in. br., the point acuminate, narrowing below very gradually, the margin 

 crenato-serrate ; texture subcoriaceous ; reins distanf^ obscure, usually once 

 forked ; sori reaching from the midrib two-thirds of the way to the edge. — HI. 

 Sp. 3. p. 87. t. 928. 



Hab. Assam and Sikkim, ascending to 4,000 ft. — ^Becognizable at once in the gronp 

 by its distinctly crenated mai'gin. A plant from Penang, gathered by ilactier, agrees 

 with this except that it has a slender stem 6-9 in. L 



16. A. Gataieri, Hk. ; st. tufted, 1-3 in. 1. ; fr. oblong-lanceolate, 3-4, in. 1., 

 J-1 in. br., the point acute, the upper part slightly crenato-dentate, the base 

 narrowed rather suddenly to a wing wfdch narrows very gradually into the 

 stem, sometimes with one or a pair of small oblong blunt lobes at the base ; 

 texture herbaceous ; veins i in. apart, usually once forked about the middle ; 

 sori small, distant, not reaching either edge or midrib. — Hk. Sp. 3. p. 88. 1. 184. 



Hab. Island of Nissobe, near Madagascar, Gautter. — ^The smallest and most delicate 

 of the gronp. 



17. A. serrtawn, Linn. ; St. short, stout, erect ; fr. 1^3 ft. 1., 2-3 in. br., acute 

 at the apex, narrowed below gradually, the margin undulato-dentate or crenate, 

 especially towards the apex ; texture coriaceous ; midrib prominent below ; veins 

 about § lin. apart ; sori often on each, reaching about two-thirds of the distance 

 to the edge.— 5i. i^. 3. p. 81. F. Ex. t. 70. 



Hab. West Indies and Guatemala, southward to Society Islands, Pern, and S. Brazil. 

 ^We include three species of Ffe, — his integrum, serratmn,, and crenulatum. 



** Fronds hbed or pinnatifid. Sp. 18-24. 



18. A. suhhastaium, Hk. ; s*. tufted, 3-4 in. I., firm, erect, naked ; fr. 4^9 in. 1., 

 I5 in. br. at the base, lanceolate^ with two short rounded lobes at the base, the 

 apex acute, the margin entire, the base rounded suddenly into the petiole ; 

 texture coriaceous ; veins immersed, inconspicuous, erecto-paten^ distant, once 

 or twice forked ; sori not reaching either edge or midrib. — St. Sp. 3. p. 91. Ic. 

 PL t. 929. 



Hab. Caraccas, and gathered lately in Peru by Dr. Spruce. — Basal lobes not always 

 obvious. Veins casually anastomosing. 



19. A. trildbum, Cav. ; St. tufted, scaly below, 2-3 in. 1., firm, erect ; fr. l-\\ 

 in. L, 1 in. br., fhomboidal, the apex acute, the base cuneate, entire, the margin 

 undnlato-crenate, or the lower part deeply lobed with broad inciso-crenate 

 divisions ; texture coriaceous ; sori broad and short. — Hk. Sf>. 3. p. 90. 2nd Cera. 

 F. 1. 11. 



Hab. Chili and S. Brazil. — A. parmdum, Hk. Ic. t. 222, is a small undeveloped form. 



2b 



