OF ARTS AND SCIENCES. 79 



very attenuate upward. The ticket of Berlandier's no. 2382 = 952, 

 bears the record "•fl. flammei." But surely the corolla in this and the 

 preceding species is white or nearly so. No stable characters are found 

 to distinguish liemsley's Dlodia tetracocca from the Texan plant, long 

 ago described as D. tricocca. 



The following Cuban genus is to be added to the tribe. 



NODOCARPiEA, Nov. Gen. Spermacocearum. 



Calycis limbus uullus. Corolla epigyna rotata, tripartita (an sem- 

 per), lobis ovatis cestivatione valvatis. Stamina 3, sinubus corollas 

 inserta, brevissima : antherge ovales. Ovarium obovato-globosum, 

 biloculare. Ovula in loculis solitaria, septo medio peltatim affixa, ara- 

 phitropa, micropyle infera. Stylus brevi-filiformis : stigmata 2, obtusa. 

 Capsula globosa, parum didyma, tenui-coriacea, corolla marcescente 

 diu apiculata, dicocca, coccis demum solutis clausis, axi nullo inter- 

 posito. Semen nitidum, ovale, plano-convexum vel meniscoideum, 

 ventre sulcatum. — Ilerbula Cubensis, tenella, flaccido-decumbens et 

 radicans ; stipulis interpetiolaribus tenuibus parum vaginantibus subu- 

 lato-attenuatis pinnato- vel ramoso-setiferis ; foliis ovatis subscssilibus 

 costa excepta enerviis oppositis, summis alaribusque quaternis vel 

 ternis flores 1-4 parvos sessilcs involucrantibus ; corolla " alba." 

 (NcuSo?, toothless, KapTTo?, fruit.) 



NoDOCARPiEA RADICANS. Borreria radicans, Griseb. Cat. PI. Cub. 

 142. — Forma hirta, foliis caulibusque pilis longis undique hirsuta. — 

 Forma glabrescens, magis tenella, pilis fere destitula. — Western part 

 of Cuba, on the moist banks of rivers and lagunes, C. Wright, no. 

 2774.* The difference between the hairy and the glabrate forms is 



* Part of the distribution consists of a slender and radicant form of no. 2760, 

 Diodia simplex, Swartz, according to Grisebach, viz. liis Borreria simplex, but 

 truly a Diodia. 



Spermacoce rubricaulis, Wright in Sauvalle, Fl. Cubana, 71, no. 3590 of distri- 

 bution, is identical with no. 27G8, named by Grisebach Borreria spinosa, Cliam. & 

 Schlecht. ; and it ma}^ be a slender form of that species, but it wants the spinu- 

 lose murication wiiich gives the name. 



Spermacoce Domitigensis, 2770 of same collection, Borreria, Griseb. Cat. PI. Cub. 

 141, appears to be S. parviflora, a narrow-leaved form, which occurs also in 

 Florida. 



Spermacoce richardsonioides, Wright, 1. c, 73, founded on Richardsonia muricata 

 Griseb. 1. c. (no. 2776), is, as Grisebach had concluded, a dicarpellary Richardia. 

 Diodia lippioidea, Griseb. Cat. PI. Cub. 141 (2762 of Wriglit's collection) is 

 remarkable — althougli Grisebach overlooked it — for having a solitary calyx- 

 lobe ! This persists on one of the cocci, while the other has none at all. 



