104 



52 



patent, glossy scales, the lower ones being larger, ovate-acuminate, the upper linear 

 and hair-pointed with a bullate base. Rachis similarly slender, glanduloso-pubes- 

 cent and somewhat scaly. Pinnæ 5 — 8 cm long, the costæ and costulæ beneath 

 more or less glanduloso-pubescent and furnished with bullate -acuminate scales 



much similar to those of D. nigrovenia. Seg- 

 ments oblique or falcate, the basal ones some- 

 what reduced, the larger serrate. Veins 5—6- 

 jugate, very oblique, reaching the margins. 

 '^^^^^^-^tr~l/:?^'t:^^ "^^^^w ^°'^ small, medial or supramedial, indusium 



c — '^~~^^^^'y^<^^^^^ '^J^^i small, fugacious, glandulose. 



D. Lindeni is different by the veins not 

 reaching the margins, D. strigilosa by diffe- 

 rent scales and glandular under surface. 



Besides the type-specimen I refer here: 



Costa Rica: Meseta, 2000 m, Alfaro nr. 16863 (C, RB), 

 Navarro, Wercklé (C). 



Guatemala: Volcan Jumaytepeque, Depart. Santa Rosa, 

 6000 ft., Heyde et Lu.x, ed. Donn. Smith nr. 

 4425 (WJ. 



43. Dryopteris strigilosa Davenport, Bot. 

 Gaz. -il: 257. 1896; C. Chr. Ind. 295. - Fig. 10a. 



Syn. Aspidium strigilosum Dav. 1. c. 

 Type from Mexico: Vera Cruz, dry 

 calcareous cliffs, barranca of Metlac, 3000 ft., 

 leg. Pringle nr. 6077 (C, H, S, W). 



Near D. Tonduzii, resembling it in size, 

 colour and texture, but the lower pinnæ in- 

 cised to costa and the scales different. The 

 scales of stipe and rachis, very numerous at 

 the base of the stipe, are up to 1 cm long, 

 patent, dark-brown, glossy, very narrow and 

 scarcely widened at base, entire but the mar- 

 gins furnished with small, capitate glands 

 (fig. 3'''''). When the scales fall they leave a 

 scar by which the stipe becomes rough. Scales 

 of the costæ beneath are similar but smaller 

 with a broader, still scarcely bullate base (fig. 3'"'). Whole leaf densely glandular- 

 pubescent. Lower pinnæ about 4 cm long, broadest at base, fully pinnate at the 

 lower half; segments (or pinnules) distinctly serrate, generally truncate at apex, 

 veins 4—5 to each side, simple, reaching the margin; sori inframedial furnished 

 with a glandulose indusium. 



Fig. 9a. D. nigrovenia (Christ) C. Chr. Middle 

 pinna and base of the second pinna from 

 below, X *k, two segments seen from the 

 underside and one seen from above, x I'/s 

 (orig.). — b. D. Lindeni (Kuhn) O. Ktze., 

 middle pinna X ''Ib and three segments 

 X l'/2 (orig.). 



