NOTES ON NORTH BRAZILIAN GKNTIANE^-, 203 



The L. gracilis, Griseb.,frora Trinidad, appears scarcely distinct from 

 the last variety, unless the lobes of the stigmate be really narrower at 

 the same stage of growth. 



§ 2. IIerbcep€re7iues,JlorihusJlaw-virescentibus,fauceampla. 



1. Lisiauthus cJielonioides, Linn., from which the L, Sckomhurgkii^ 

 Griseb., does not appear distinct,' as the simple inflorescence is evi- 

 dently accidental on the specimen described, and does not exist on 

 others of the same collection. Abandoned fields, British Guiana 

 (Schomburgk, 1st coll. n. 398); margins of the forest near Santarem 

 on the Amazon (Spruce); Maranhara (Gardner, n. G064). 



3. Lisianthus^6'ifwte?/5, Poir., scarcely distinct from Z. acntangxilus, 

 Jiuiz et Pav., to which Hooker is correct in referring also the L. tetra- 

 go7iu8 and Z. auriculatus of my Plants Hartwegianse, and should per- 

 haps likewise include the L. alatiis, AubL Cayenne (Martin) ; Surinam 

 (Hostmann, n. 387) ; on the Una road, near Para (Spruce). 



3. Lisianthus viridijlorus^ Mart, — In capociras at Panure, on the Rio 

 Uaupes (Spruce). The leaves are rather more distinctly petiolate, and 

 rather thinner and more distinctly veined, than in Gardner's Goyaz 

 specimens (n, 3341 and 4278), and in Claussen's from Minas Geraes, 

 but they appear all to belong to one species. 



I have also a very distinct annual species with pink flowers, gathered 

 by bir R. Schomburgk, at Marawaica, on the borders of Guiana, but 

 the single specimen is insufficient for accurate description. I have no 

 specimen of the L. Elisahethay of the section LeiothamnuSy described 

 and figured by Schomburgk, in the Berlin Horticultural Transactions. 



Tachia, AuU. 



Fine specimens of the T, Guianensis, beautifully figured by Martins, 

 and corresponding in the venation of the leaves both with that and 

 With Aublet's figure, were gathered by Mr. Spruce in the capoeiras 

 near San Gabriel. Those however which the Schombur^rks srathered 



D""' O 



m British Guiana, belong to two diflferent species, both distinguished 

 from T, Gutanensis in the venation of the leaves, and from each other 

 m the calyx. They may be thus ctaracterized : 



1. Tachia Guianensis , AnhL ; foliis penninerviis, calycibus exalatis 

 breviter dentatis. — In Guiana Gallica (Aublet), et Brasifiaj prov. Rio 

 Negro (Martins, Spruce). 



2. Tachia gracilis; foliis quintuplinerviis, calycibus exalatis breviter 



