640 Some account of the Botanical Collection. [No. 7. 



forms which seem to me to be extra-tropical, from which it would 

 appear that the great bulk (about 5 -6th) is decidedly tropical. 



This collection presents an unusual mixture of form, much of 

 which is perhaps attributable to the effects of cultivation. Almost 

 all the genera are to be met with in "India Orientalis," but I 

 imagine scarcely any other like locality could present such a mixture 

 as that of Commelina, Hydrocharis, Salisburia, Achyranthes, Pinus, 

 Aglaia, Humulus Lupulus, Paederia, Juglans, Zingiber, Agrimonia, 

 Nelumbium, Ehododendron and a Palm. 



The most marked northern forms appear to me to be Hydrocharis, 

 Salisburia, Pinus, Quercus, Humulus Lupulus, Agrimonia, Rhodo- 

 dendron, Solanum Dulcamara ? 



Clematis, Rumex, Camellia, Hedera, Sambucus and Plantago all 

 admit of some degree of explanation, in as much as these genera 

 may be found at similar levels, but in considerably lower latitudes, 

 in certain parts of the Eastern frontier of Bengal ; and some species 

 of Juniperus under cultivation seem to defy a great amount of heat. 



Other similarities to the Flora of our Eastern frontier, Assam for 

 instance, are indicated by the affinity of the Quercus to one from 

 the Khasiya Hills, on which it is, so far as I know, the only Euro- 

 pean form of that genus ; by one of the Polygoneae which also occurs 

 in the same direction, and which is remarkable for its armed habit, 

 perfoliate leaves, and bright azure berries, and by the genus Acti- 

 nostemma. 



The only parts of this collection which I feel myself at all com- 

 petent to illustrate, are Hamamelideae and Cucurbitacese. 



Hamamelide^i. — The species is Hamamelis sinensis, E. Br. ; the 

 specimens are in fruit, and look at first sight not unlike some 

 Grewias. 



The Asiatic plants of this family are Bucklandia populnea, two 

 species of Hamamelis, one of Eothergilla ? found by Dr. Falconer, 

 and I believe M. Jacquemont, in Cashmir, and one of Corylopsis.* 



CORYLOPSIS. 



* Zuccar. in Sieb. Fl. Japon. fasc. 1. p. 45. t. 19. 20. Endl. Gen. Plant, 

 p. 804. No. 4589. 



Char. Gen.— Calyx semi-inferus, 4-5 dentatus vel partitus. Petala 4-5,spathu- 

 lata vel obovata. Stamina fert ilia 5, sepalis opposita ; antherarum loculi secus 



