1863.| On the Flora of Behar and the mountain Parasnath. 193 
November. This species is found in the Himalayas, the Nilgherries 
and the mountains of Ceylon. In the Himalayas it flowers in the 
summer months, and its lower limit is 2,000 feet higher than the 
summit of Parasnath. 
The general resemblance of the Flora of Parasnath to that of the 
dry less elevated mountain ranges of central and southern India is 
undoubted. To prove this, the following features of that Flora and 
of Parasnath are sufficient. The most prominent negative characters 
of both these Floras are the absence of Anonacee, Ternstramiacee, 
Pittospereacee, Rhamnacee (except Zizyphus), Rosacea, especially 
tropical Rubt, Araliacee, Myrsinacee, Cornace, Apocynacee, Laura- 
cee, Amentacee, Aroideea, Orchidee and Ferns. 
The following orders preponderate in both these Floras, but none 
of them give a definite aspect to the vegetation of these districts. 
Sterculiacee, Buettneriacee and Tiliacee are proportionally nu- 
merous both on Parasnath and in central India. To these may be add- 
ed as quite as prominent in the vegetation, Olacinee ; Terebinthacee 
especially in number of genera; Leguminose ; Combretacee, Lythra- 
cee, Rubiacee, Composite, especially the genera Vernonia, and Blu 
mea; Convolvulacee ; Cordiacee and Graminee. 
The fact of a few peculiar genera and species being common to 
both these Floras is of more importance as a proof of the affinity of 
the vegetation of the two regions than deductions drawn from the 
excess of certain orders. I enumerate the most important of these 
genera or species which are either identical in species or have repre- 
sentative and allied species in each Flora. 
Kydia calycina fovb., in both. 
Cochlospermum Gossypium, DC. ditto. 
Eriolena Hookeriana, W. and A. ditto. 
Olax scandens, Rowb., ditto. 
Ougeina dalbergioides, Benth., ditto. 
Hardwickia binata, Rowé., ditto. 
Dedalacanthus purpurascens, 7. Anders. ditto. 
The following genera are common to both Floras having closely 
allied species in each. 
Pygeum, 
EHlzodendron, 
Zizyphus, 
