38 6. ALSOPHILA. 



2i-3 in. 1., J in. w., oblong-acuminate, deeply nearly to the costa pmnatifid ; 

 lobes oblong, falcate, acute, entire, margins slightly reflexed ; sori copious, occu- 

 pying the space between the costule and the margin ; rachises and costw beneath 

 free from scales or pubescence. 



Hab. Chimborazo, alt. 2,500 ft., Spruce, n. 5740.— "A pretty Fern when growing." 

 Spi'uce. 



33. A. aterrima, Hk. ; St. castaneous, copiously aculeate, and at the base 

 shaggy with very long (IJ in.), dense, ferruginous, flexuose scales and fine 

 hairs "; fr. ample, thick, carnoso-coriaceous ; black above, a little paler and 

 chocolate-coloured beneath, villous above ; rachis shaggy ; cost<B and eostules, espe- 

 cially beneath, clothed with deciduous, tawny, lanose hair ; prim, pinnw 1 ft. 

 and more 1., 'pinnl. 2-2^ in. 1., 4 lines w., deeply to the costa pinnatifid ; lobes 

 oblong, very obtuse, entire ; sori chiefly on the lower half of the lobes (about 6), 

 close to the costa, ferruginous. 



Hab. Near Tarapota, E. Peru, Spmce, n. 4713.— The blackest-looking speoies, when 

 dry, I am acquainted with, and of a very firm and coriaceous texture. 



34. A. pruinata, Klf . ; unarmed ; st. densely lanigerous at the base ; fr. coria- 

 ceous, I'laiuoi.s, bi-tvipinnate ; prim, pinnae petiolate, 12-18 in. 1., ovato-lan- 

 ceolate ; pinnl. 3-4 in. 1., 1 in. w. ; petiolulate, from a broad base oblong- 

 acuminate, deeply pinnatifid, or again pinnate ; lobes or utt. pinnl.^ \ in. 1., 

 lanceolate, very acute, deeply or pinnatifidly and sharply serrated ; sori solitary, 

 near the costule, one to each lobule or serrature ; costce and eostules beneath 

 often very hairy, and hairs mixed with the capsules on a small recept. — Hk. Sp. 

 1. p. 47. Poloyp. griseum, Schk. Fil. t. 25. Trichosorus glaucescens, densus 

 et frigidus, Liebm. Lophosorus, Pr. 



Hab. Tropical America and W. Ind., extending as far south as Chili ; Juan Fernandez. 



35. A. friffida, Karst. ; " caud. not lofty ; St. and rachises clothed sparingly 

 with deciduous tomentum and, especially at the base, muricated ; fr. ovato-lan- 

 ceolate, tripinnate, coriaceous ; prim, and second, pinnae from a broad base 

 gradually narrower and acuminated ; pinnl. ^ in. 1., oblong, more or less adnate at 

 the base, densely squamose beneath, pinnatifid ; the lobes falcate, obtuse, crenate, 

 separated by a very narrow, acute sinus, pennivein^d ; the margin revolute ; 

 veins simple or forked, the lower ones on the middle of the back or in the fork 

 soriferous ; recept. semiglobose, pilose." — Karst, Fl. Uolumh. t. 30. 



Hab. Andes o£ Bogota, alt. 15,300 ft., Karsien, 



36. A. mexicana. Mart. ; "fr. tripinnatifido-partite, sparingly hirsute on both 

 sides ; st. and rachis rough with hairs and furnished with scales varying in size ; 

 pinnos linear-oblong, acute ; pinnl. linear-acuminate, deeply pinnatifid ; ultimate 

 ■lobes obliquely and broadly ovate, entire or emarginato-bidentate ; sori on each 



lobe near the rachis 2-e."—Mart. (Jr. Bras. p. 70. t. 46. Hk. Sp. l.p. 47. 

 Hab. Mexico. 



37. A. mj/osuroides, Liebm.; "caud. 10-16 ft. 1., 3-4 iff. diam. ; jf^. ample; 

 pinnce patulous, petiolate, elongato-lanceol. 1^-2 ft. 1. ; pinnl. divergent, 3-34 in. 

 1., 4 in. w., elongato-lanceolate, long-acuminate, acute, deeply pinnatifid ; lobes 

 from a dilated base linear-lanceolate, falcate, rather obtuse, crenulato-falcate ; 

 margins a little revolute, the sinuses angled ; the apex of the pinnl. contracted, 

 4-1 in. 1., 1-2. lines w., crenated ; costa on both sides appresso-pilose ; sori 

 numerous on each lobe, at length confluent ; st. 1 ft. h, 1 in. thick, aculeolate 

 with straight prickles." — Liebm. F. Mens. p. 134. 



Hab. Mexico, on mountains, alt. 2,400 ft., iieJmomm. — ^Theauthorseems toalludetoan 

 affinity with AU. a/rmata, Pr. I possess copious specimens from Dr. Liebmann gathered 



