292 PROF. OLIVER ON NEW PLANTS FROM RORAIMA. 



at the base. Pinna? about 20 on a side below the caudate apex of tbe frond, £ in. broad 

 at the base, narrowed gradually to an acute point. Sori a line in diameter, 12-16-jugate 

 on the lower pinnae. 



Nearest the Andine P. melanopus, Hook. & Grev., from which it differs by its stiffly 

 erect stipes, frond broadest at the base, and obscure immersed veins. Found on the 

 upper slopes of the mountain, and gathered previously by Kalbreyer on the mountains 

 of the province of Ocana, in New Granada, at an elevation of 6500 ft. 



186* (159*). Poltpoditjm Kookenam^:, Jemnan MSS., n. sp. ; rhizotnate valido bre- 



viter repente vel suberecto paleis subulatis castaneis ciliatis dense vestito, stipitibus 



castaneis clongatis parce ciliatis, frondibus oblongo-lanceolatis subcoriaceis glabris 



simpliciter subpinnatis, rhachide primario anguste alato, pinnis lanceolatis acutis inte- 



gris basi confiuentibus, costis immersis, venis furcatis, soris medialibus obscure 



immersis. 



Stipes 6-9 in. long. Lamina 6-8 in. long, 2 in. broad, truncate at the base, dark green 



above, pale beneath. Pinnae 16-20 on a side below the subentire acuminate apex of the 



frond, the largest an inch long, 3-^ in. broad. Primary rhachis purpuraceous on both 



sides of the frond. Sori terminal on the anterior fork of each vein. 



This I have not seen, and insert entirely on Mr. Jenman's authority. I have merely 

 altered the form of the description which he has sent, so as to make it uniform with the 

 others. It did duty for no. 186 in set C of the distribution. Mr. Jeninan says it is 

 intermediate between P. Kalbreyeri and the Jamaican P. bruiineo-viride. 



180, 379. Polypodium taxefolium, Linn. Upper slopes of the mountain. 



104. Polypodium pectixatum, Linn. In the neighbourhood of the encampment. 



124. Polypodium cultratum, Willd. In the neighbourhood of the encampment. 



217. Polypodium xanthotrichium, Klotzsch (P. ellipticosorum, Fee). Upper slopes 



of the mountain. Appears to be distinct specifically from P. cultratum by its 



uniformly elliptical sori. 

 281. Polypodium rigescens, Bory. Upper slopes of the mountain. 

 176. Polypodium firmum, Klotzsch. Upper slopes of the mountain. 

 378. Polypodium subsessile, Baker. Upper slopes of the mountain. 

 190. Polypodium capillare, Desv. Upper slopes of the mountain. 



125 (212*). Polypodium (§ Eupolypodium) melanotrichum, n. sp. ; caudice erecto 

 paleis subulatis crispatis vestito, stipite brevissimo gracillimo, frondibus oblongo- 

 lanceolatis parvis flaccidis membranaceis glabris bipinnatifidis, pinnis lanceolatis 

 adnatis profunde pectinato-pinnatifidis inferioribus sensim minoribus, segmentis 

 deltoideis acutis, venis brevibus simplicibus erecto-patentibus, soris globosis supex'- 

 ficialibus costularibus ad apicem venarum impositis. 

 Stipes and rhachis black, thread-like, glabrous. Lamina" 3-4 in. long, an inch broad at 



the middle. Central pinnae half an inch long, -J in. broad, with 6-8 pairs of deltoid 



segments with a single sorus in the centre of each. 



