133 



185 



570 (W) — San Luis Potosi, Rio Verde, Edvv, Palmer nr. 32 IW) — Chiapas, near Petapa, 

 Coi.LiNS and Doyle nr, 94 (\V| — Durango, San Ramon, Edw. Palme» nr. I24'l2 |W) — 

 Morelos, near Cuernavaca, Rose and Painter nr. 1U23'2 (W). 

 Guatemala: Depart. Jzabal, Livingston, W. A. Kellerman nr. 5082 (W) — Cuajiniquilapa, Depart. 

 Santa Rosa, 2500, Heyue et Lii.\ ed. J. D. S. nr. 0289 (B, C, Wj. 



var. geropogon (Fée). 



Syn. Aspidinm geropogon Fée, 10. mém. app. 1865. 



Dryopteris geropogon C. Chr. Ind. 267. 1905. 

 Differs from var. puberula only by tlie almost glabrous frond and perfectly 

 glabrous indusia. 



Mexico: Galeotti nr. 6311 (Herb. Paris) — Cuernavaca, Houbgeau nr. 1319 (H, Herb. Paris) 

 Liebmann (H). 



Lobani, 



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 dem longis, straniineis, glabris. Lamina 4 — 5 dem longa, her- 

 bacea vel membranacea, gramineo-viridi, rachi costisque subtus 

 sparse pubescentibus exceptis glabra, bipinnatiüda. Pinnis sessilibus, 

 suboppositis, 15 — 18 cm longis, 1'/l' — 2 cm latis, longe acuminatis, 

 basalibus vix reductis, versus basin parum attenuatis, ad alam 2 — 3 

 mm latam pinnalifidis. Laciniis falcalis, aculis, integris, marginibus 

 revolutis. Venis simplicibus, 10— 14-jugis, subtus prominentibus, 

 basalibus ad apophysem callosam distinctam, saepe acutam excur- 

 rentibus. Soris supramedialibus vel margin! approximatis, parvis; 

 indusiis persistentibus, reniformibus, glabris vel breviter hirtis. 



Intermediate between D. patens var. déversa 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 

 pinnæ are in large specimens rather reduced but never to the 

 same extent as in D. oligophylla; the basal segments of the middle 

 and upper pinnæ are a little prolonged. I have found on the 

 costæ beneath some minute scales, which resemble those of D. 

 oligophylla. The rachis and costæ are straw-coloured. 



I refer here the following specimens: 



'^^:fe^ 



Uruguay: Bebro nr. B iC = nr. 5243 of my collection) 

 VALETA ur. 2025 (C;. 



Frej' Bentos, Arecha- 



Fig. 24. 

 n. sp. 



Vs, and 



X l'/-2 



D. Berroi 

 Pinna X 

 segments 

 (orig.j. 



