133 185 
570 (W) — San Luis Potosi, Rio Verde, Epw. ParwER nr. 32 (W) — Chiapas, near Petapa, 
Couuins and Doyte nr. 94 (W) — Durango, San Ramon, Epw. PALMER nr. 124!|; (W) — 
Morelos, near Cuernavaca, RosE and PaintTer nr. 10232 (W). 
Guatemala: Depart. Jzabal, Livingston, W. A. KErLERMaN nr. 5082 (W) — Cuajiniquilapa, Depart. 
Santa Rosa, 2500, HrypE et Lux ed. J. D. S. nr. 6289 (B, C, W). 
var. geropogon (Fée). 
Syn. Aspidium geropogon Fée, 10. mém. app. 1865. 
—. Dryopteris geropogon C. Chr. Ind. 267. 1905. 
Differs from var. puberula only by the almost glabrous frond and perfectly 
glabrous indusia. 
Mexico: GALeorti nr. 6311 (Herb. Paris) — Cuernavaca, BouncEau nr. 1319 (H, Herb. Paris) — Lobani, 
LIEBMANN (H). 
194. Dryopteris Berroi n. sp. — Fig. 24. 
Type from Uruguay, in locis umbrosis ad ripam San An- 
tonio, leg. M. B. Berro nr. 5243 (CC). 
Rhizomate repente paleis brunneis sparse onusto.  Stipitibus 
4—6 dcm longis, stramineis, glabris. Lamina 4—5 dem longa, her- 
bacea vel membranacea, gramineo-viridi, rachi costisque subtus 
sparse pubescentibus exceptis glabra, bipinnatifida. Pinnis sessilibus, 
suboppositis, 15—18 cm longis, 1'»—2 cm latis, longe acuminatis, 
basalibus vix reductis, versus basin parum attenuatis, ad alam 2—3 
mm latam pinnatifidis. Laciniis falcatis, acutis, integris, marginibus 
revolutis. Venis simplicibus, 10— 14-jugis, subtus prominentibus, 
basalibus ad apophysem callosam distinctam, saepe acutam excur- 
rentibus. Soris supramedialibus vel margini approximatis, parvis; 
indusiis persistentibus, reniformibus, glabris vel breviter hirtis. 
Intermediate between D. patens var. deversa and D. oligophylla, 
resembling the former in size, texture, colour and nearly glabrous 
frond, the latter in the creeping rhizome, prominent veins and the 
distinct yellowish apophysis, which often resembles a tooth at the 
sinus. I regard it as a near relative of D. oligophylla, like a very 
reduced form of that species. The lower segments of the lower 
pinne are in large specimens rather reduced but never to the 
same extent as in D. oligophylla; the basal segments of the middle 
and upper pinne are a little prolonged. I have found on the 
coste beneath some minute scales, which resemble those of D. 
oligophylla. The rachis and coste are straw-coloured. 
I refer here the following specimens: 
Uruguay: Berro nr. B (C = nr. 5243 of my collection) Frey Bentos, ARECHA- 
VALETA nr. 2025 (C). 

Fig. 24. D. Berroi 
n. sp. Pinna »« 
'|; and segments 
>< 1!l» (orig.). 
