416 PROCEEDINGS OP THE AMERICAN ACADEMY 



as to the genus, but the plant is undescribed among Mexican um- 

 bellates. 



BouvARDiA LINEARIS, HBK.* Rio Blanco, on hillsides among 

 grass ; September. (5-14.) 



BouvARDiA VERSICOLOR, Ker, Bot. Reg. t. 245, var. gracili- 

 FLORA. {B. tri flora, HBK. Nov. Gen. & Spec. 3. 386, t. 288. Anotis 

 longiflora, Benth. PI. Hartw. 23. Houstonia triflora, Gray, Proc. 

 Am. Acad. 4. 313; HemsL Biol. Centr.-Am. Bot. 2. 30.) Rio Blanco; 

 July. (154^) Tequila, a depauperate form in the crevices of rooks. 

 (369.) Chapala, among underbrush. (708.) — The seeds are finely 

 winged, and it must belong to Bouvardia. The only specimen in 

 the Kew herbarium which answers to B. versicolor, Bot. Reg. t. 245 

 (1817), is one cultivated in the Montpellier garden in 1831, in Bent- 

 ham's herbarium, without fruit. All the numerous other specimens 

 have the slender corolla as figured by Kunth, and of these the calyx- 

 lobes vary in length and pubescence. If all are of one species, as it 

 seems, the name B. versicolor is the older and better. 



Bouvardia scabra. Hook. & Arn. Rio Blanco, hillsides and 

 ravines; October. (663.) 



Hamelia versicolor. Gray, n. sp. H. nodosce, Mart. & Gal., 

 fortasse peraffinis, glabra ; foliis plerumque ternis cteterum iis H. chry- 

 santhce similibus ; cyma coryrabiformi laxa, ramis vix spiciformi- 

 scorpioideis ; calycis dentibus minimis ; corolla semipollicari tubulosa 

 sursum parum ampliata aurantiaca demum sanguinea, dentibus rotun- 

 datis staminibusque srepius 7; antheris inclusis vix apiculatis ; baccis 

 globosis rubris 4-locularibus. — Barranca. (125.) A compact shrub, 

 5 feet high, with numerous orange flowers changing to crimson ; 

 berries crimson. 



Chiococca racemosa, Linn. Tequila. (383.) 



Cruse A rubra, Cham. & Schlecht. ? A long-petioled and rather 

 small-flowered form; same as a cultivated specimen in herb. Kew, 

 figured in " The Botanist, t. 82." Flowers rose-color. Tequila, in 

 the barranca. (416.) 



Crusea calocephala, DC. Prodr. 4. 567, ex char. Like narrow- 

 leaved C. rubra, but much smaller-flowered. Flowers rose-color. 

 Guadalajara, in ravines; September. (462.) — The same as 1525 

 Bourgeau, and in other collections. 



* The determinations and descriptions of the following Gamopetalce are by 

 Dr. Asa Gray, including results of recent comparisons made by him at the 

 Kew herbarium and at Paris. 



