TABULA 2989. 
ROLFEA ELATA, Zahilbr. 
ORCHIDACEAE. Tribe NEOTTIEAE. 
Rolfea, Zahibr. in Journ. Bot., 1898, p. 493. Genus anomalum, a 
Sertifera, Lindl., foliis longe petiolatis, scapis racemosis, bracteis amplis 
conduplicato-concavis, floribus majoribus elongatis et segmentis sub- 
conniventibus differt. 
Perianthium connivens. Sepala et petala subaequalia, Sled» 
Labellum petalis multo latius, obsolete trilobum, basi columnae facie 
adnatum, marginibus eundem amplectens ; disci nervi vix enone 
parce villosi. Columna clavata, paullo arcuata, basi labello adnata, 
. biauriculata ; stigma ad basin rostelli lati transverse concavum ; 
clinandrium breve. Anthera incumbens, apiculata, bilocularis ; 
salient obovoidea, pulverea. Capsula elongata, teres, columna persis- 
tente coronata.—Herba elata, terrestris, habitu Neuwiediae. Flores 
mediocres, in racemos axillares dispositi. Bracteae amplae, conduplicato- 
concavae. 
R. elata, Zahlbr. in Journ. Bot., 1898, p. 493. Species unica. 
Herba terrestris. Folia longe petiolata ; oan lanceolatus vel 
elliptico-lanceolatus, acuminatus, plicatus, 30-56 cm. longus, 5-10 cm 
latus, basi vaginatus. Scapz laterales, 15-20 cm. longi ; rhachis velutina. 
Bracteae amplae, ovatae vel ovato-oblongae, acutae vel mucronatae, 
conduplicato-concavae, venosae, sal shy 15-2°3 cm. longae. Flores 
mediocres, flavi. Pedicelli 1:2 cm. longi. Sepala oblongo-lanceolata, 
apiculata vel subobtusa, 2°4-2° 6 cm. longa, 6 mm. lata. Petala 
sepalis subaequalia vel paullo angustiora. Labellum obscure trilobum, 
2°5 cm. longum, expansum, 1-1'2 cm. latum, basi angustum. olumna 
1-4 cm. longa. Capsulae oblongae, 3-45 cm. longae.—Jenmania 
elata, Rolfe in Kew Bull., 1898, p. 198. 
TropicaL America. Trinidad: without precise locality, Prestoe ; 
Aripo, Lunt, 6377. British Guiana: Pomeroon River, Jenman, 1640: 
Mazaruni River, Jenman, 1685; Demerara River, at the Great 
Falls, Jenman, 6659, 6904; and without precise locality, Im Thurn, 
$43, 
