136 84 



78. D. tablaziensis Christ; C. Chr. Revision nr. 7 fig. ß. 



Area: Costa Rica and Panama (Maxon nr. 5287 and 5336, W). 

 The rhizome is erect, about 10 cm high, 1 cm thick. In Maxons specimens I 

 find small, castaneous scales on the costæ beneath. 



79. D. Lindigii C. Chr., Revision nr. 15. 

 Area: Costa Rica, Colombia, Venezuela. 



80. D. lustrata (Hieron.) C. Chr., Revision nr. 14. 

 Area: Colombia, Peru. 



81. Dryopteris hydrophila (Fée) C. Chr. Index 271. 1905. 



Syn. Phegopteris hydrophila Fée, 11 mém. 56 tab. 13 fig. 3. 1866. 

 Polypodiuin hydrophilum Bak. Ann. of Bot. 5: 456. 1891. 



Type from Guadeloupe, leg. L'Herminier (Herb. Cosson, Paris!); Maze 

 nr. 363 et 843 (Kew!). 



In my Revision pag. 294—295 I believed that Ph. hydrophila and Ph. delicalula 

 were forms of one species; this is not the case, Ph. hydrophila being a distinct 

 species closely related to D. oligocarpa, while Ph. delicalula is allied to D. sancta. 

 D. hydrophila was well figured by Fée; it resembles in general habit very closely 

 D. oligocarpa and D. Lorentzii differing from both by its inframedial sori, which 

 are furnished with minute, ciliate indusia, not seen by Fée. Rachis slender, sub- 

 glabrous beneath; pinnæ with a large, tuberculiform aërophore at the base beneath, 

 broadest at the base, very finely and rather sparsely pubescent above, the costæ 

 and veins beneath shortly and sparsely hairy. Segments very oblique, broad, acute, 

 the basal ones equal-sized, the upper one parallel to rachis, the lower one much 

 oblique. Veins 5-jugate, distant, oblique. — Fournier (PI. niex. 1: 89) referred to 

 this species a plant from Mexico, San Luis Potosi, Virlet nr. 44. 



82. D. Lorentzii (Hieron.) C. Chr., Revision nr. 3 fig. 4. 

 Area: Argentina. 



83. D. argentina (Hieron.) C. Chr., Revision nr. 4. 

 Area: Argentina, Chile — Peru, Bolivia. 



84. D. oligocarpa (H. B. Willd.) O. Ktze.; C. Chr. Revision nr. 5 fig. 5; Smiths. 



Misc. Coll. 53: 370. 



Area: Mexico — Bolivia; Cuba, Jamaica, Haiti, St. Kitts. — South Brazil (var. 

 retusa (Sw.)). Beautiful specimens of this species were recently collected in Panama 

 by Maxon, nr. 4936, 4970, 5242 (W). It varies considerably in pubescence and I now 

 regard D. nauarrensis Christ; C. Chr. Misc. Coll. 53: 371 as a very hairy variety 

 with several of the longer hairs consisting of 2—4 cells. 



