462 D. Pram — Some additional Leguminosse. [No. % 



long, brandies 4-6 in., spreading, pedicels "4 in. 2-bracteolate close under the calyx. 

 Calyx campanulate, purple-brown, *12 in. long. Corolla white, standard orbicular ecal- 

 lose, with a green spot at the top of the claw. Ovary sparsely puberulous ; ovules 4. 

 This may, as Prof. Miquel thought, be a Brachypterum •, it seems, however, on 

 the whole to be more nearly allied to B. aflinis, D. amoena and B. marginata, the two 

 last of which are certainly members of the section Bipteroderris. Unfortunately the 

 pod is still unknown. 



19. Derris Maingayana Bale. 



In consequence of the communication of intermediate forms it seems advisable 

 to treat this as only a variety of B. amoena. 



21. Derris canarensis Bah. 



The authentic specimens of Brachypterum canarense at Calcutta cannot be 

 separated by the writer from the Concan specimens collected by Stocks and included 

 by Mr. Bentham in D. oblonga Bth. The fruits of the Concan and the Ceylon plants 

 placed under D. oblonga may differ ; unfortunately our Calcutta specimens of B. oblonga 

 from Ceylon are in flower only. 



22. Derris sinuata Thw. 



Add to localities of F. B. I. : — Bengal ; Sundribuns, very common. 

 Perak ; Kunstler I Scort echini ! 



23. Derris thyrsiflora Benth. 



Delete from localities of F. B. I. : — " Eastern Himalaya and the 

 Khasia Mts." 



The species has never been reported to Herb. Calcutta from any locality north 

 of Kedah on the mainland ; it is found also in the Nicobars. Perhaps the Himalayan 

 plant associated with this one is the next species, which though nearly allied is very 

 distinct ; the only circumstance that makes this conclusion doubtful is that the 

 Himalayan plant in question is Dr. Wallich's Pterocarpus floribunda, a species that 

 neither Mr. Bentham nor Mr. Baker have accounted for, and one that is retained as a 

 Pterocarpus in the Index Kewensis. 



Mr. Baker cites Amerimnum obovatum Ham. MSS. as a synonym of this species. 

 But the only specimen in Herb. Calcutta which Dr. Buchanan- Hamilton has, in his 

 own handwriting, named Amerimnum obovatum is a specimen which Prof. Graham has, 

 also with his own hand, named " Pongamia ? obovata "; it constitutes Wall. Cat. 5897 

 and is, as Mr. Baker elsewhere says, only Berris cuneifolia. And Wall. Cat. 9054, 

 which Mr. Baker likewise quotes as being Berris thyrsiflora, it is better in the mean- 

 time to omit. The plant so numbered is not represented at Calcutta ; at Kew there 

 are apparently two very distinct plants under the number because Mr. Baker has 

 referred Wall. Cat. 9054 to Spatholobus acuminatus as well as to Berris thyrsiflora. 



236. Derris Wallichii Prain, Journ. As. Soc. Beng. lxvi. 2. 99; 

 leaflets acute two and half times as long as broad, pedicels as long as or 

 longer than the calyx, pod broad not sinuate, distinctly winged down 

 botli sutures. Pterocarpus floribundus Wall. Cat. 5846. 



Silhkt ; WallicK 5846 ! Cachar ; Prazer ! Khasia ; Griffith 1770 

 [Kew Dist.] ! Calcutta Collectors ! at Maraloo, Clarke 43825 ! Assam j 

 King's Collectors ! Andamans ; King's Collectors ! 



