136 84 
78. D. tablaziensis Christ; C. Chr. Revision nr. 7 fig. 6. 
Area: Costa Rica and Panama (Maxon nr. 5287 and 5336, W). 
The rhizome is erect, about 10cm high, 1 cm thick. In Maxon’s specimens I 
find small, castaneous scales on the coste 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. 
Polypodium hydrophilum Bak. Ann. of Bot. 5: 456. 1891. 
Type from Guadeloupe, leg. L'HERMINIER (Herb. Cosson, Paris!); MazÉ 
nr. 363 et 843 (Kew !). 
In my Revision pag. 294—295 I believed that Ph. hydrophila and Ph. delicatula 
were forms of one species; this is not the case, Ph. hydrophila being a distinct 
species closely related to D. oligocarpa, while Ph. delicatula 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 FÉre. Rachis slender, sub- 
glabrous beneath; pinnz with a large, tuberculiform aérophore at the base beneath, 
broadest at the base, very finely and rather sparsely pubescent above, the cost 
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 niuch 
oblique. Veins 5-jugate, distant, oblique. — FounNrER (Pl. mex. 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. dligocarpa (H. B. Willd.) O. Ktze.; C. Chr. Revision nr. 5 fig. 5; Smiths. 
Misc. Coll. 52: 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. navarrensis Christ; C. Chr. Misc. Coll. 52: 371 as a very hairy variety 
with several of the longer hairs consisting of 2—4 cells. 
