391 55. ANTROPIIYUM. 



surface, oblique, linear-vermiform, often forked. — H^. Sp. 5. p. 174. Ic. t. 3t)4. 

 2nd Cent. t. 70. Scoliosorus, Moore. 



Hab. Mexico and Guatemala. — Connects Antroxihjum with the Selliguece, of the 

 lanceolata group. 



10. A. lanceolatum, Kaulf. ; fr. 1 ft. or more 1., \-\ in. br., tbe point acute, 



the edge entire, the lower half narrowed very gradually to the base ; texture 



s. / papyraceous, a distinct slender raised midrib throughout ; areolw vertical, 



^ hexagonal, 2-3 times as long as broad, about three rows between the midrib and 



edge ; sori slender, superficial, often joining. — Hk. Sp. 5. p. 176. 



Hab. West Indies and Mexico to New Granada. — The Mexican A. FSei, Schaff., is a 

 short broad variety of firmer texture, with a slightly repand margin. 



y 11. A. subsessile, Kunze ; fr. 6-12 in. 1., 1-1| in. br., broadest one-third of the 



N V li way down, narrowed gradually to the base and an acute point ; texture firm ; 



fv"^ ^jnidrib raised, distinct from the base to the apex ; areolce oblique, hexagonal, 



[„y^ about twice as long as broad ; sori subsuperficial, often forked. — Hk. Sp, fi. 



^ p. 171. 



Hab. Cuba and Guatemala to Peru. 



12. A. cayennense, Kaulf. ; 5^. 1-4 in. 1. ; fr. 6-9 in. 1., 1-1^ in. br.. lanceolate- 

 oblong, narrowed at both ends, the edge thickened, entire ; texttire rather firm, a 

 distinct prominent midrib extending from the base to the apex ; areolce oblique, 

 hexagonal, half as broad as long ; sori subsuperficial, often forked. — Hk. S2). 5. 

 p. 171. 



Hab. Guiana and the Amazon Valley. — Closely allied to the preceding. The two may 

 be readily distinguished by their raised midribs and short oblique areolae. 



13. A. latifolium, Blume ; st. 3-6 in. 1., stout, compressed, widening into the 

 frond gradually ; fr. 4-6 in. 1., 3-4 in. br., oblong or obovate, the apex cuspidate, 

 the edge entire or slightly repand towards the point, the base narrowed very 

 gradually ; teacture thick ; no distinct midrib; areolce vertical, 2-3 in. 1., g in. br. ; 

 sori stout, copious, rarely joining. — Hk. Sp. 5. p. 172. 



Hab. Java and Bootan. 



14. A. Mannianum, Hk. ; st. 6-9 in. 1., slender, blackish, curved ; fr. 6-9 

 in. 1., nearly as broad, obovate or roundish, the apex cuspidate, the edge repand, 

 the base broad-cuneate ; texture thin, no distinct midrib; the areolae 1-2 in, I., 

 ^ in. br., radiating from the base to the circumference ; sori slender, copious, 

 often joining. — Hk. Sp. 5. p. 173. 2nd Cent. t. 73. 



Hab. Guinea Coasf . 



15. A. Boryanwn, Kaulf. ; st. 1-4 in. 1., stout, compressed, passing into the 

 frond gradually ; fr. 6-12 in. ]., 2-4 in. br., broadest a third or halfway down, 

 the point acute or blunt, the edge entire, the lower part narrowed very gradually ; 

 no distinct midrib ; areolce numerous, vertical, hexagonal, \ in. 1., | in. br. ; 

 swi slender, often joining. — Hk. Sp. 5. p. 172. Hk. 4' Gr. t. 74. 



Hab. Mauritius, Bourbon, and Johanna Island. — A. obtusum, Kaulf., does not appear 

 to be clearly distinguishable. 



16. A. giganteum, Bory ; fr. 12-18 in. 1., 3-4 in. br., broadest a third of the 

 way down, narrowed very gradually to a short very stout paleaceou^stem, the 

 edge with a broad entire cartilaginous border ; texture very thick ; areolce close and 

 fine, vertical, about j in. 1., 1 lin. br. ; sori slender, often joining. — Hk. Sp. 5. 

 p. 174. 



Hab. Mauritius and Bourbon. 



