NOTES ON NORTH BRAZILIAN GENTIANEJi. 201 



curvae. Stylus brevis, stigmatis lamellis oblongis. Capsula ovato- 

 oblonga, bisulca, 3-3^ lin. longa, bilocularis, placenta demum fere 



libera 4-partibili. * 



Gathered first by Sir Robert Schomburgk on the sands of the Rio 



Negro (1st coll. n. 989), and afterwards by the side of streams, near 



Barra, on the same river, by Mr, Spruce, and distributed by me as 



Coutouhea ramosa^ from which, however, it widely differs. 



4. Lisianthus recurvus ; caule erecto siraplici, foliis breviter petiolatis 



ovatis oblongisve basi acutis crassiusculis, cyma bifida v. dichotoma 



nuda, pedicellis recurvis, coroUse eglandulosse albse tubo lato calycem 



obtusiusculum vix superante. — Herba semipedalis v. rarius fere pe- 



dalis, caule angulato. Folia 1-1^ poll, longa, i-1 poll, lata, ple- 



raque obtusa, crassiuscule merabranacea, penninervia v. obscure tri- 



plinervia, petiolo 1-2 lin. longo. Cymes rami rigidi, ebracteati, le- 



viter flexuosi. Pedicelli crassi, valde recurvi. Calyx fere 2 lin., 



corolla 4-5 lin. longa, alba, limbo patente. Filamenta exserta, 



antheris breviter oblongis recurvis apiculatis. Stylus brevis, lamellis 



fere Unearibus vix dilatatis. Capsula oblouga, arete reflexa, demum 



F 



5 lin. longa. 



Near Panure, on the Eio Uaupes (E. Spruce). This agrees in so 

 many respects with Fenzl's detailed description of the IrlbacJda Bon- 

 plandiana {Claytonia nemorosa, herb. WiUd.), that I should have consi- 

 dered it to be that plant, but that the corolla is said to be half an inch 

 long, with stipitate glands, of which there is no trace in Spruce's plant. 

 The leaves of the latter are also generally obtuse, and there is nothing 

 in the style to explain Tenzl's expression, which I have already alluded 

 to. I should therefore conclude that Bonpland's plant is a fifth species 

 of the section Bracliycodon. 



The remaining Lisianthi from the North Brazilian and Guiana col- 

 lections in the Kew Herbaria, are chiefly referable to Grisebach's sec- 

 tion MelonanthuSy and may be classed as follows 



§ 1. Species annua, corolUs ccerukis, tubo calyce muUo lonyiorebasi 



Lis: 



attenuato, 



Irlhacliia caruUscens, Griseb. 



Moist savannahs, British Guiana (Bob. Schomb. Ist coU. n. 164). 



Cayenne (Martin). 



2. Lisianthus caMpanuloides, Spmce; annuus, caule erecto stncto te- 

 tragono subalato basi subramoso, foliis subsessilibus lineanbus eras- 



2d 



VOL, VI. 



