146 94 



surfaces is also minutely hairy and without glands. Stipe long, up to 30 cm to 

 the lowermost pair of glanduliform pinnæ, these in 3 — 4 very distant pairs and 

 above them 3—4 pairs of auriculiform pinnæ. Larger segments often serrate, linear- 

 oblong or ligulate, 3 — 4 mm broad with 10—15 pairs of veins thatj are more distant 

 than in D. Sprengelii; basal segments of lower pinnæ not much reduced. Sori very 

 close to the margin; indusium small, hairy, soon falling. Sporangia glabrous. 



144. D. scalaris (Christ) C. Chr.; Revision nr. 72 fig. 47; Smiths. Misc. Coll. 53: 390. 



Area: South Mexico to Costa Rica. 



145. Dryopteris Bonapartii Rosenstock in Fedde Repert. 7 : 303. 1909. — Fig. 16 a. 

 Type from Ecuador, Mt. Tunguragua, Spruce nr. 5254 (RB!). 



A most distinct species with long slender pinnæ of thin texture and fully 

 pinnate in the lower half. Evidently a near ally of the preceding species and of 

 D. Mercurii, in pubescence and lack af glands resembling D. conformis, but basal 

 pinnulæ much reduced, veins more numerous and sori not so close to the margin. 



146. Dryopteris Bradei Christ, Bull. Soc. hot. Genève II. 1: 225. 1909. — Fig. 15 f. 



Type from Costa Rica, Irazu, leg. Brade nr. 245 (R!). 



Of this I have seen a single leaf only and I dare not decide with certainty 

 whether it is a good species or not. It is not improbable that it is a thin-leaved 

 form of D. rudis or D. nervosa. 



147. D. Rusbyi C. Chr. Smiths. Misc. Coll. 52: 390. 

 Area: Bolivia. 



148. D, Christensenii Christ; C. Chr. Revision nr. 70 fig. 46. 



Area: Costa Rica, Biolley nr. 67 part. (CC), Candelaria, A. et C. Brade nr. 

 418 (R); Panama, Chiriqui, Maxon nr. 5202 bis (W). 



149. D. limbata (Sw) O. Ktze.; C. Chr. Revision nr. 71; Smiths. Misc. Coll. 53: 390. 



Area: St. Kitts, Guadeloupe; Jamaica (?). 



D. consanguinea (Fée) C. Chr. (see above nr. 59) may be a small form of this. 



150. D. corazonensis (Sod.) C. Chr. Revision nr. 57 fig. 36. 

 Area: Ecuador. 



151. Dryopteris semilunata (Sod.) C. Chr. Index 291. 1905. — Fig. 16 d. 

 Syn: Nephrodium semilunaiiim Sodiro Rec. 46. 1883; Cr. vase. quit. 245. 1893. 

 Type from Equador leg. Sodiro (Kew!). 



Stipe to lowest developed pinnæ 50 cm long and bears 3 — 4 pairs of very 

 distant pairs of glanduliform pinnæ, the lowermost ones not more than 5—6 cm from 



