200 NOTES ON NOKTH BRAZILIAN GENTIANE^. 



Sect. Brachycodon, — Species annuse. CoroUse albse, subcampanu- 



latse, tube calycem vix excedente. 



1, Lisianthus pumilm; caule Iiumili tenui ramoso, foliis linearibus, cymi3 

 bifidis paucifloris ebracteatis, coroUse tube lato calycem obtusiuscu- 

 lum aubsequante. — Herha erecta, 2-3-pollicarisj caule angulato fere 

 alato. Folio 1^-3 poll. longa,"raro lineam lata^ acuta, basi longe 

 angustata. Cym^ graciles, 3-8 -florae, foliis saepe breviores. Pedi- 

 celli tenues. Tlore^ parvi, Sepala lineam longa. Corolla vix duplo 

 longior, alba. Filamenta insequalia, basi dilatata. Anther<B breves, 

 demum recurvae, vix apiculatee. Stylus brevis, lamellis ovali-oblongis 

 erectiusculis. Capsula ovoidea, 3 lin, longa. 



In inundated woods of the Eio Negro, near San Carlos, R. Spruce, 

 April, 1853. 



2. Lisianthus subcordatus; caule humili, foliis petiolatis late ovatis sub- 

 cordatis membranaceis, cymis brfidis ebracteatis, pedicellis erecto- 

 patentibus, eorollse tubo lato calycem obtusiusculum sequautc. 

 Herba 3-4-pollicaris, ereeta, in specimine simplex, caule tetragono. 

 Folia 1^-2 poll, longa, polJicem lata, tenuiter membranacea, quin- 

 tupliuervia, basi lata, interdum late cordata, petiolo 4-6 lin, longo. 

 Cyma breviter pedunculata, bifida, ramis flexuosis sesquipollicaribus. 

 Pedicelli breves, apice incrassati. Flores parvi, albi. Sepala 1 lin., 

 corolla 2 lin. longa. Filamenta exserta, infra medium dilatata. An- 

 the)*(B breves, recurvse. Stylus brevis, lamellis oblongis- Capsula fere 

 4 lin. longa, acuminata, omnino similis ei IrlhacTiioR elegantis^ Mart. 

 Mr. Spruce found but two specimens, one in flower, the other in 



fruit, near Panure, on the Eio Uaupes, with the L, recwDUs, 

 3- Lisianthus ramosissi7/ius ; caule diffuso ramosissimo, foliis petiolatis 

 lanceolatis, cymis simplicibus bifidisve bracteatis, corolte tubo lato 

 calycem obtusum subaequante limbi laciniiseo brevioribus. — Coutoubea 

 ramosa, Bentli. in Hook. Jonrn. Bot. vol. ii. p. 45, et in Spruce, Pl- 

 exsic. non Aubl. — Herba semipedalis, ramis divaricato-diffusis tetra- 

 gonis vel 4-alatis. Folia l-l-|-pollicaria, obtusiuscula v. rarius acuta, 

 basi in petiolura angustata, membranacea, subtriplinervia, sumraa 

 decrescentia, floralia bracteantia parva. Cymce breves, scmel bifidse 

 V. siraplices, pauciflorse. Flores pedicellati, nutantes, albi, vix 2 

 Hn. longi, limbo lato patente. Calycis segmenta linea paullo longi- 

 ora, ovali-oblonga, obtusa. Stamina intra faucem eorollse inserta 

 et ei subsequalia. Filamenta basi dilatata. Anfhera apiculatae, re- 



