219 271 
272. Dryopteris lingulata n. sp. 
Syn. Phegopteris Andreana Christ, Prim. Fl. Costar. 3: 35. 1901. 
Type from Costa Rica: Foréts de la vallée du Rio Hondo pres Madre de 
Dios, 200 m, leg. Pirtier nr. 10349 (C). 
Rhizomate? Stipite incompleto 60 cm longo, griseo, glabro, anguloso. Lamina 
60—70 cm longa, chartacea, laete-viridi, costis supra minute puberulis exceptis om- 
nino glabra, impari-pinnata. Pinnis lateralibus, 5-jugis, 12 cm inter se remotis, lin- 
gulatis seu elliptico-lanceolatis, 30 —35 cm longis, medio 7 cm latis, caudato-acuminatis, 
marginibus undulatis, subintegris inferioribus, petiolo 2—4 cm longo stipitatis, basi 
cuneata, supremis sessilibus basi inferiore ad rachin adnata, superiore rotundato- 
cuneata. Venis secundariis 6—8 mm inter se distantibus, tertiariis 16—17 inter se 
3mm remotis convexis; venulis liberis apice late clavato ultra medium areolae in 
parenchymate desinentibus, seu ad venam transversam superiorem productis. Soris 
lunatis, angustis, saepe 4—5 mm longis. Receptaculis glabris. 
Differs from the two preceding species, which it resembles by the long-stalked 
inferior pinnz with a cuneate base, by the shape of the pinnz and its long, narrow, 
convex sori. A single pinna resembles not a little an entire, small leaf of D. gigantea, 
from which it differs by its glabrous rachis and costz beneath. 
273. Dryopteris gigantea (Mett.) C. Chr. Index 267. 1905. 
Syn. Meniscium giganteum Mett. Fil. Lechl. 1: 19. 1856. 
Type from Peru: St. Gavan, LecHLER nr. 2292 (B!, S). Other specimens 
from Ecuador, Soprro (C), Columbia, Costa Rica, Pirtrer nr. 1163 and 9448 (C). 
Well-marked by its entire frond, hairy midrib and principal veins, and by the 
cross-veins being covered with sporangia from end to end. It appears that the 
species also can be pinnate with 1—3 pairs of lateral pinne. 
The following forms, in Index Fil. referred to D. reticulata, are certainly good 
species (for synonymy see Ind. Fil.). 
274. Dryopteris reticulata (L.) Urb. 
The typical form of this is West-Indian, but very similar forms are found in 
Central-America. In Brazil the species scarcely occurs. 
275. Dryopteris sorbifolia (Jacq.) Hieron. Hedwigia 46: 350. 1907. 
Area: Mexico along the Andes to Peru. 
Hieronymus refers to this species Meniscium arborescens Willd. and M. Kapp- 
lerianum Fée and he regards Phegopleris mollis Mett. as a variety. 
276. Meniscium macrophyllum Kze. — Bahia and Guiana. 
277. Phegopteris membranacea Mett. — Peru, LECHLER nr. 1785. 
35* 
