38 
deltoid with their basiscopic pinnules, especially the basal one, produced; middle and 
upper pinne oblong. Secondary pinnules of middle pinnz adnate, the upper ones 
decurrent at base, obtuse, with 4—5 obtuse-oblique, lobes on each side. The whole 
leaf throughout glanduloso-pubescent by short thick cylindrical, appressed hairs, 
consisting of a single cell. Scales of stipes, rachis and stalks of pinne narrow-linear, 
dark-brown, those of the midribs of pinnz beneath in typical forms bullate witha 
Short, suddenly contracted apex, somewhat iridescent; similar scales are found on 
the midribs of the secondary pinnules beneath, but they are always few in number, 
sometimes absent. Ultimate veins do not reach the margins. Indusia small, reddish, 
early deciduous, glandulose by short hairs as is the whole underside of the lamina. 
Spores echinate. 
e form here described is found at lower elevations in Jamaica, and with it 
agrees closely that form from Eastern Cuba, which Fér described and figured as 
Cystopteris rufescens; it has sometimes a more ovate-deltoid or even ovate-oblong leaf 
and its bullate scales are less iridescent. Other forms or varieties occur in Western 
Cuba, San Domingo and Porto Rico, and a very distinct subspecies or better a 
related species is found at higher elevations in Jamaica. I describe these different 
forms below. — Hooker referred to his Nephrodium hirtum a plant from West 
Tropical Africa, leg. Curror. I have not seen it and can form no opinion of it; 
still I think it is different from D. hirta. 
1, forma genuina (incl. Cystopteris rufescens). Scales of midribs of pinnz bullate, 
somewhat iridescent; indusia small, reddish. 
Jamaica: Near Priestmann’s River, Maxon nr. 2498 (CC, H, Rg, W): Kempshot and Ocho-Rios, Euiz. 
. Brirron. nr. 687, 745 (W); Vinegar Hills, Davin Warr nr. 147 (R, RB). 
Cuba: Oriente, Monte Verde, WricnT nr. 1016 (B, S, W); ad Jaguey, Eccers nr. 4926 b (B). 
Porto Rico: Finca Alvarez, Hioram, ed. Rosenst. Fil. portoric. exs. nr. 18 (K, RB). 
2. forma cubana (Pol. barbatum Kze.). Scales of midribs of pinne subbullate or 
scarcely so, beautifully iridescent; indusia minute, rarely seen, pale.or whitish. 
Leaf often less glandular. A form of the Western provinces of Cuba. 
Cuba ad Embarcadero del lanimar, Poeppic (B, RB, type of P. barbatum Kze.); Via Tumbadero, OTTo 
nr. 91 (B= Cystopteris hirta K1.). Pinar del Rio: Lomas de Guanajay, v. HERMANN nr. 2183 (W); 
Sierra de Anafe, Witson nr. 11580 (W); Léon s. n. (RB); Loma del Carmen, Léon nr. 442 (W); 
sine loco, EKMAN nr. 1132 (CC), Prov. Habana: San Antonio de los Banos, v. 
(W). Prov. Santa Clara: Patajones to Ciegos de Ponciano, SHAFER nr. 12246 
Loma de la Jaula, Léon nr. 3518 (RB). . 
. HERMANN nr. 3349 
(W). Prov. Habana: 
» 
f. domingana. — Scales of midribs of pinnz not bullate, ovate-acuminate, larger 
than in the other forms, iridescent; indusia minute. Lamina less glanduloso- 
it, especially above. 
Sto. Domingo prope Puerto Plata, Isabel de la torre, Eccers nr. 1585, 2762b (B). 1575 pt. (W, 
not others). 
