232 houstoun's central American LEGUMiNOsai. 



Cassia Cham/t: crista. There are two sheets from Herb. Miller 

 so labelled, neither of which is C. ChanKEcrista L. One of these from 

 Vera Cruz, Houstoun (bearing Houstoun's name in his MS., as 

 cited by Miller), is C'. procumhens L., and is the plant referred to 

 that species by Bentham (I. c. 578) as of "Mill. Diet. no. 17." The 

 _ other sheet, which appears to be that quoted by Bentham as " C. 

 Chamcccriata Mill. Herb, at non Diet.," and referred by him to 

 C. virgata Sw., is in our judgment C. flavicoma H.B.K., to which 

 species it was allocated by Trimen when he was rearranging our 

 Cassias in accordance with Bentham's revision. With C. flavicoma 

 is also placed a sheet from Herb. Miller labelled Cassia flexuosa, but 

 Houstoun's plant (the C. flexuosa of Mill. Diet.) is, as has been said, 

 C. serpens L. Besides these specimens, we have from Herb. Mill, 

 a small specimen of another Cassia of the Chamacrista section, to 

 Avhich is attached in Miller's hand a descriptive phrase of Houstoun's 

 which we do not find in his MS. The specimen, which is from Vera 

 Cruz, is very imperfect ; it corresponds exactly with another speci- 

 men from Miller preserved in Herb. Sloane, 293, 43, but the 

 combined material is not sufficient for specific determination. 



Bauhinia em.ahginata. In the absence of flowers it is not possible 

 to determine this species positively, but it is closely allied" to 

 B. acideata L., if not identical with it. 



BAumNiA rotundata Mill. Diet. Doubtfully referred by DeCan- 

 dolle to B. acideata L., but seems distinct. Miller's specimens have 

 neither flower nor fruit. The specimen representing B. acideata 

 in Cliffort's Herbarium closely resembles this, and is equally im- 

 perfect. B. acideata is based on the description and plate in Hoitits 

 Clifl'ortianus ; neither flowers nor fruit are described or figured, and 

 the plate corresponds sufficiently with Cliftbrt's specimen ; but, as 

 is well known, the plants in Clifl'ort's herbarium do not always 

 correspond with the descriptions in Uortns Clifl'ortianus. 



Bauhinia tomentosa Mill., non Linn. Belongs to the section 

 SchneUa, but we have not matched it with any of the described 

 species. 



Bauhinia ungulata L. ; Mill. Diet. No. 4. Of this species little 

 seems to be known, even as to locality, beyond the description in 

 Hart. Cliff., where it is localized "in America." The description 

 there given and the specimen from Cliffort's garden agree perfectly 

 with a plant from Campeachy placed with B. uiaiulata by Miller, 

 who cites Houstoun's descriptive phrase. This is identical with 

 Pauletia inennis Cav. Ic. v. 6, t. 409 {B. inenuis Pers. Siju. i. 455) 

 from Acapulco, which must therefore be reduced to a synonym. 

 Barclay's specimens from Fonseca, referred to B. inenuis by Ben- 

 tham, Bot. Sulph., and Hemsley, Jjot. Biol. Centr. Amer. i. 338, 

 agree perfectly with the Linuean plant. Miller grew the plant in 

 Chelsea Garden from seeds sent from Campeachy. 



Mimosa cinerea Mill., non Linn. So far as Houstoun's plant ia 

 concerned, this is Piptadenia flava Benth. Miller has placed 

 Houstoun's name upon a plant from Carthagena which entirely 

 agrees with this species. 



