18 
are attenuated towards the apex, sometimes nearly triangular, not as those of D. sancta 
linear. Thus it diverges from D. sancta in the direction of D. opposita. 
11. Dryopteris rupicola C. Chr. Fedde Repert 15: 24. 1917. 
Type from Sto. Domingo: prope Constanza ad Valle nuevo, in rupibus 
2270 m., Eacers nr. 2157 (B)), 
Lastrea e sectione D. oppositae rhizomate erecto, apice squamis nonnullis duris, 
castaneis vestito. Stipitibus caespitosis, numerosis, 2—4 cm longis, vix 2 mm crassis, 
basi parce squamosis, glabris, rigidis, stramineis. Lamina lanceolata, ad 40 cm 
longa, medio 8 cm lata, versus basin longissime et gradatim decrescente, versus 
apicem pinnatifidum sensim attenuata, rigide coriacea, obscure viride, rachi supra 
_ Strigosa excepta ubique glabra et eglandulosa vel subtus parcissime glandulosa, bipin- 
natifida. Pinnis numerosis, usque ad 30-jugis, sessilibus, inferioribus plerumque 
suboppositis, superioribus alternis, inferioribus c. 10-jugis sensim reductis, deltoideis, 
lobato-auriculatis, infimis trilobis minimis; medialibus maximis, horizontalibus, 
acuminatis, c. 5 em longis, 7—8 mm latis, fere ad costam pectinato-pinnatifidis. 
Segmentis ¢. 15-jugis, patentibus vel parum obliquis, sinubus latis, rotundis sepa- 
ratis, marginibus integris revolutis, apice subacutis; basalibus longioribus poste- 
riore auriculo rotundato rachin tegente instructo. Venis distantibus, 4—5-jugis, sim- 
plicibus, crassis, in pagina superiore scalpturato-elevatis. Soris parvis, submargi- 
nalibus, plerumque a margine revoluto tectis, exindusiatis. Sporangiis nudis. 
In habit and size very similar to D. opposita, from which it differs by coria- 
 ceous, glabrous and eglandulose lamina with thick raised veins and narrower seg- 
ments. From D. scalpturoides, which it resembles in texture and venation, it differs 
by the exindusiate sori, glabrous lamina with narrower pinne. 
14. D. leucothrix C. Chr.; Mon. nr. 66. 
var. glanduligera C. Chr. et Ros. Fedde Repert 12: 471. 1913. 
Varietas stipite deorsum pilis longis, albis, mollibus lanoso, facie frondis infe- 
riore glandulosa nec (costis exceptis) pilosa, indusiis glandulis aureis instructis, 
minus dense pilosis, maturis evanescentibus a typo diversa. . 
Bolivia: North-Yungas, Polo Polo near Coroico, BucuTien nr. 3407 (CC, R). 
15. Dryopteris Rosei. Maxon, Smiths. Misc. Coll. 65°: 10. 1915. 
Peru: near Matucana, Dr. and Mrs. J. N. Rose nr. 18667 (not seen). By 
its setose indusia and long attenuate lamina evidently a very distinct species. 
16. DU. panamensis (Pr.) C. Chr. — Also S. Domingo: La Vega, FUERTES nr. 
1800 (B). 
18. D. scalpturoides (Fée) C. Chr. — Also Haiti, Picarpa nr. 257 (B). 
19. Dryopteris Shaferi Maxon et C. Chr. Amer. Fern Journ. 4: 77. 1914. — Fig. 3. 
oie Type from Cuba: Oriente, near Camp San Benito, J. A. SHAFER nr. 4037 
(W); also Camp la Gloria, SHarER nr. 8094, 8215 (W). 
