NEW AND LITTLE-KNOWN MADAGASCAR PLANTS. 51 



pseudobulb. The present species is somewhat variable, certain 

 specimens being nearly twice as large as others. The flower 

 appear to be straw-coloured with bright yellow lip. 



Bulbophyllum. Pekyillei, Rolfe, sp. n. 



Bhizoma lignosum. Pseudobulbi compressi, suborbiculares 

 approximati, 5-7 lin. longi, monophylli. Folia oblonga v. ellip- 

 tico-oblonga, crassiuscula, f-1 unciam longa, 4-7 lin. lata. Scap 

 suberecti, apice suhnutanti, 5-9 uncias longi. Bacemi laxiusculi, 

 multiflori. Bracteae ovato-oblonga?, acutse, 1— 1£ lin. longse. 

 Sepal um posticum deltoideo-lauceolatum, acutuin, 2-2| lin. 

 longum ; lateralia subsimilia, subfalcata. Petala linearia, sub- 

 obtusa, 1 lin. longa. Labellum recurvum, lineare, subacutum, 

 1| lin. longum, minute papillosum, marginibus tenuibus, medianis 

 lineis bis carnosulis. Columna brevis, dentibus falcatis acutis. 



In forest near Fort Dauphin (without number), Insula Nossi- 

 be, Julio 1840, PervilU, 136. Without precise locality, Hum- 

 blot, 380. 



A markedly distinct species, somewhat resembling JS. erectum, 

 Thouars, in habit, but with less distant pseudobulbs and various 

 other differences. Perville's specimen in Lindley's Her- 

 barium is in fruit, but is so precisely similar in general character 

 that I think it must belong to the same species. 



Bulbophyllum Elliotr, Rolfe, sp. n. 



Bhizoma lignosum. Psudobulbi compressi, suborbiculares, 

 approximati, 5-7 lin. longi, monophylli. Folia oblonga v. ellip- 

 tico-oblonga, crassiuscula, |-l unciam longa, 4-7 lin. lata. Scapi 

 breves, basi vaginis membranaceis tecti. Bacemi multiflori, rha- 

 chide incrassata. Bracteae triangulari-ovatae, obtuse, rigidse, 1^-2 

 lin. longse. Sepalurn j)osticum triangulari-ovatum, acuminatum, 

 papillosum, 1| lin. longum ; lateralia falcato-deltoidea, acumi- 

 nata, papillosa. Petala falcato-subulata, acutissima, J lin. longa. 

 Labellum arctissime recurvum, lineare, obtusum, margine pecti- 

 nato-fimbriatum, medianis lineis bis carnosulis. Columna brevis, 

 dentibus subulatis acutis falcatis. 



In forest near Fort Dauphin (without number). 



Habit of 5. Pervillei, Bolfe, but the pseudobulbs slightly 

 more distant and the leaves a little larger. The inflorescence, 

 however, is very different, and somewhat resembles that of 

 J3. conitum, Thouars, with dull maroon flowers. The strongly 

 recurved, very fimbriate lip affords a marked character to the 

 species. 



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