452 BeneEpIct : AANTROPHYUM 
Spores triplanate ; paraphyses wanting ; sporangia in crooked 
superficial mostly longitudinal lines; fronds linear-lanceolate, 
23 xX I-55 x I.7 cm., usually broadest a little above the middle, 
sessile, membranous ; costas percurrent ; margins repand ; areo- 
lae in rows parallel to the costa, usually pointed. 
West Indies and Mexico to northern South America. 
This species is one of the commonest and also most easily 
distinguishable of the genus. Only one other, A. ineatum, re- 
sembles it closely, and differences in soriation as well as less-marked 
differences in outline and in the texture of the living plant serve at 
once to distinguish the two. 
In Mexico and Honduras true A. lanceolatum is replaced by 
the form A. Féei, which may prove distinct. It has fronds elliptic- 
lanceolate, 9 x 0.9-I9 x I.4 cm.; smaller and relatively much 
broader than the type form. Its best claim to recognition lies in 
the uniform way in which these characters are maintained, combined 
with its localization in Mexico and Honduras to the exclusion of 
the related form, which is, however, found not far away in Costa 
Rica. But if it is a good species, Dominica must be included in 
its range, since material in the herbarium of the N. Y. Botanical 
Garden from this island cannot be separated from that collected in 
Mexico. 
4. ANTROPHYUM BRASILIANUM (Desv.) C. Chr. Ind. Fil. 59. 1905. 
Hlemionitis brasilianum Desv. Prod. 216. 182 7.5 Chype from 
Brazil.) 
Antrophyum subsessile Kunze, Anal. Pter. 29. pl. 19. f. 1. 1837. 
(Type from Peru.) 
Antrophyum spathulatum Fée, Mém. Foug. 4: 46. pl. 4.7.6. 1852. 
(Type from Colombia.) 
Spores triplanate ; paraphyses wanting ; sporangia in simple or 
branching lines, divergent from near the costa toward the margin : 
fronds oblanceolate or oblong, 19 x 1.7—30 X 3.5 cm., narrowed 
very gradually below, subsessile or with margined stipe of inde- 
terminate length, short-acuminate, young fronds acute ; epidermis 
glossy, wrinkled ; margins thin and sharp, reflexed ; areolae di- 
vergent from the costa, rather distinct on the back of frond ; mar- 
ginal areolae closed, small, costa percurrent, prominent below. 
Borivia: Isapuri, Williams 1354; Tumupasa, Williams 
7353 * San José, Williams 1352. Braz: Ilheos, Martius (Herb. 
