80 



that they are hardly distinguishable by a passer-by. The 

 tube of the stamens stands back aloof from the corolla, and 

 of the latter the two dorsal petals are quite free down to 

 their base. 



171. DENDROBIUM Cambridgeanum ; (Paxton's Mag. Bot. vi. 265.) cauli- 

 bus pendulis medio incrassatis, foliis ovalibus acutissimis, pedunculis 

 bifloris, petalis lanceolatis sepalis latioribus, labello cucullato rotundato 

 indiviso supra piloso. 



This plant is only known to me from the figure in Mr. 

 Paxton's Magazine of Botany. It is said to be a native of 

 the Khoseea hills of India, whence it was brought to Chats- 

 worth by Mr. J. Gibson in 1837 ; it was found at an eleva- 

 tion of 4000 feet, attaching itself to rocks and trees. It is a 

 beautiful species, with large rich yellow flowers, having a 

 deep purple stain in the middle of the lip ; but seems very 

 near D. Paxtoni and chrysanthum. 



172. NIPHJEA oblonga. 



Among some extremely fine herbaceous plants sent to the 

 Horticultural Society from Guatemala by Mr. Hartweg, is 

 one with a dwarf stem, hairy, fleshy, oblong serrated leaves, 

 like those of a Gloxinia, and bearing a cluster of large snow- 

 white flowers at the summit of the stem, which is undivided. 

 It proves to be a new Gesneraceous genus, differing from all 

 those in Gesneracese proper in having the rotate corolla of a 

 Ramonda, and from Gloxinia, to which it approaches most 

 nearly, in the want of perigynous glands, and of a gibbosity 

 at the base of the corolla. It will be figured shortly in this 

 work ; in the meanwhile the following short character will 

 sufficiently define the genus. 



NIPHiEA. Calyx superus sequalis 5-partitus. Corolla rotata, laciniis 

 subeequalibus, duabas superioribus paulo minoribus. Stamina 4 fertilia 

 subsequalia, quintum carnosum deforme. Glandulse perigynse o. 



Stigma simplex. Sp. 1. Niphsea oblonga. Hirsuta, simplex, foliis 



oblongis, cordatis, dentatis, rugosis. Flores candidi, axillares termina- 

 lisque, cernui. 



