438 PEOCEEDINGS OF THE AMERICAN ACADEMY 



ut videtur perennis ; foliis oppositis membranaceis ovato- vel oblongo- 

 cordatis ; petiolis gracilibus ; pedunculis folia ajquantibus corj-mboso- 

 paucifloris ; corolla rubella vel rosea semipollicari intus pilosa, corona 

 alba. — Guadalajara, among underbrush iu wet ground on hills ; 

 August. (280.) 



PoLYPREMUM PROCUMBENS, Liun. Guadalajara, in grassy sandy- 

 bottoms ; September. (613.) 



Sabbatia Palmeri, Gray, n. sp. S. maculatcB, Benth., ut videtur 

 proxima ; caule stricto subpedali ; foliis omnibus sessilibus subpollica- 

 ribus, iuferioribus spathulatis vel obovatis basi attenuatis, superioribus 

 augusto-linearibus ; floribus perpaucis louge jjedunculatis 5-meris ; 

 calycis lobis filiformibus seu liuearibus (semipoUicaribus), tubo parum 

 turbinato brevi exangulato ; corolla rosea fauce immaculata, lobis 

 spathulato-lanceolatis calycem vix superantibus ; stylo bipartito, lobis 

 stigmatiferis clavato-filiformibus; capsula ovali lin. 3 longa. — Rio 

 Blanco, in a deep bai'ranca ; October. (GG8.) The character is con- 

 trasted with that of S. maculata [Eustoma, PI. Hartw.), which I have 

 not seen. 



Erythr^a Madrensis, Hemsl. More depauperate. Rio Blanco, 

 on grassy hillsides ; October. (746.) 



Halenia parviflora, Don. Rio Blanco, in a shady ravine un- 

 der pines ; October. (680.) 



LiMNANTHEMUM HuMBOLDTiANUM, Griscb. Rio Blanco ; July. 

 (181.) 



LcESELiA ciLiATA, Linn. Tequila, among bananas. (370.) 



LcESELiA GLANDULOSA, Don. Rio Blauco, iu ravines; October. 

 (685.) 



WiGANDiA URENS, Cham. Guadalnjara; October. (637.) 



Hydrolea spinosa, Linn. Guadalajara, in a swampy bottom ; 

 September. (432.) 



natas. Styli ovariis a^quilongi. Vertex stiginatis coiivexus 7-lobulatus ; lobulis 

 6 parvis deorsum in radios corpuscula polliiiiorum gerentibus circa duos centra- 

 les (pseudo-stigmata) paullo majores verticillatis. Folliculi ignoti. — Certainly 

 a A'ery distinct genus, technically more like to RouUniu than to any other.* I 

 take pleasure in dedicating it to a valued botanical correspondent, Dr. J. H. 

 Mellichamp, of South Carolina, who has helped us by acute observations upon 

 the Asclepiadeous plants of the Southern Atlantic States, and whose investi- 

 gations upon Sarracenia van'olan's and its appliances for enticing ants into its 

 tubular pitchers have long been upon record. 



* lloTHROCKU, Gray, Proc. Amer Acad. 20 205, and Syn. FI. ed. 2, 2. 401, although referred to 

 the Ci/nanchem, is ambiguous between that tribe and the Gonolobea, having very short anthers 

 and oval pollinia; but the former are not at all "transversely dehiscent." 



