378 SMITHSONIAN MISCELLANIvOUS COI^LECTIONS VOL. 52 



This most distinct new species resembles in habit some forms of 

 D. opposita, especially the variety rivulorum (Raddi) ; but it differs 

 from that species as well as from all other species known to me by 

 its rather peculiar indusia, which appear as a cluster of white hairs 

 like white dots on the under side of the leaf. It is also remarkable 

 for its long stem, its long and narrow leaf, and its linear pinnae with 

 patent round-pointed segments. Although the leaf has a long stem 

 and equal-sized basal segments the species must be placed in my 

 system between D. opposita and D. riopardensis. 



DRYOPTERIS PSEUDOSANCTA C. Chr., sp. nov. 



Costa Rica : Rio Toro Amarillo, Llanuras de Santa Clara, 300 meters, 

 /. Donnell Smith 6902, Apr., 1896, type; U. S. National Herbarium, 

 No. 828991. 



Guatemala : Rio Pinula, Depart. Santa Rosa, 4,000 ft., Heyde and Lux 

 {Donnell Smith 4094). 



Budryopteris rhizomate erecto, breve. Stipitibus dense fascicula- 

 tis, tenuibus, brevissimis (2-3 cm.), basi fuscescentibus. Lamina 

 lineari, usque ad 4.5 dm. longa, 5 cm. lata, ad basin longe et gradatim 

 attenuata, tenuiter herbacea, obscure viridi, rachi tenui pilis patenti- 

 bus mollibus sparse hirta, bipinnatifida. Pinnis subpatentibus, 

 oppositis vel superioribus alternis, sessilibus, inferioribus (e medio 

 laminae) sensim abbreviatis, infimis minimis trilobis, medialibus, 

 inter se 1-1.5 cm. remotis, a basi lata versus apicem acutum sensim 

 attenuatis, equilateralibus, 2 cm. longis, supra basin ca. 5 mm. latis, 

 ad costas venasque utrinque sparse pilosis denique glabris, subtus 

 sparse glandulosis, profunde serrato-lobatis vel pinnatifidis. Laciniis 

 obliquis, acutis, basali anteriore producta. Venis 2-3 jugis, sim- 

 plicibus. Soris medialibus, parvis ; indusiis reniformibus, subper- 

 sistentibus, sparse ciliatis. 



This species is a very near ally of D. delicatula (Fee) C. Chr., 

 from Guadeloupe, but it has a longer and narrower leaf, a shorter 

 stem and medial sori. From D. sancta it is more different by its 

 equilateral pinn?2 and long, narrow leaf. 



DRYOPTERIS SANCTA (L.) Kuntze 



(Revision 295, No. 32, Fig. 20.) 



This species includes a number of forms, some of them probably 

 of local origin. It varies in size from the small Jamaican plants to 

 the large var. Balbisii (Spreng.) C. Chr., and in pubescence from 

 almost entirely glabrous (the typical form) to a condition in which 

 the rachis and costa are often rather densely hairy above. It may 



