194 



NOTES ON NORTH BRAZILIAN GENTIANE^E. 



Schomburgk, 1st coll. n. 167), in exposed gravelly situations in the 

 serras near Santarem, on the Amazon (Spruce, distributed as S. tenella, 



/ 



892) 



Gardner's n. 4280, from Goyaz, is ScJiuehleria paMa, Mart., and 



Min; 



Mart 



The following new species, approaching in stature the ScJiuehleria 

 stricta, but differing considerably in the foliage and flowers, was ga- 

 thered by Mr. Spruce on the margins of inundated campos at Uana- 

 naca, near San Gabriel, on the Eio Negro, in North Brazil, in Decem- 



ber, 1851. 



ohtusifolia 



nerviis, cyma floribunda, coroUis (minimis) calycem pauUo superan- 

 tibus, antheris subconnatis muticis connective parvo, stigmate sub- 

 gloho^o. ^Caules erecti, pedales, infra cymam foliatam simplices. 

 Folia intermedia 4 lin. longa, 3 lin. lata, basi arete sessilia v. am- 

 plexicaulia. Mores albi, vix li lin. longi. Calycis segmenta seta- 

 cea. (Spruce, coll. n. 2011.) 



Tapeinostemon, gen. nov. 



The two plants for which I propose to establish this genus are both 

 from the neighbourhood of Panure, on the Kio Uaupes. They are 

 allied to the small-flowered Schuebleria in their calyx, corolla, and sta- 

 mens, but have a very difterent foliage, habit, stigmate, and capsule, 

 and at first sight remind one rather of some herbaceous 

 or Euhiacece, than of the majority of Gentianece. 

 Char. Gen.— Calyx pai-vus, 5-partitus, segmentis exalatis. Corolla sub- 

 infundibuliformis, tubo lato, limbo brevi 5-lobo. Stamina 5, co- 

 rollfe tubo prope basin inserta. Jntlierce hastatte, connatEC, inclusae, 

 imrautatse. Ovarium valvulis introflexis biloculare. Stylus brevis- 

 siraus v. subnullus, stigmate brevi bilamellato. Capsula calyce 

 multo longior, oblonga, bisulca, bivalvis, septicida, ^emi-4-locularis. 

 Semina numerosa, tuberculata.— IT^^ij BrasiliEe borealis annu» 

 erectse ramosse, foliis longe petiolatis membranaceis triplinerviis, 

 cymis multifloris divaricato-thyrsoideis v. capitato-contractis. 

 1 . Tapeinostemon spenneroides ; foliis ovato- v. oblongo-lanceolatis, cy- 

 mis divaricato-thyrsoideis.— i7;??-5a sesquipedalis. erecta. ramosissima. 



Melastomacea 



