145 



GENTIANEAE. 



COÜTOUBEA, Aubl. 



1. Coutoubea ramosa (Aubl. Tom. 1. p. 74. Tab. 28), annua, caule 

 basi lignescente , erecto, ramosissimo, obtuse tetragono, foliis lanceolatis 

 utrinque attenuatis, racerai pedicellis oppositis distantibus, bracteis infc- 

 riorum foliaceis florem quadruplo superantibus. 



Stirps in omni Guiana nee non in Brasilia vulgaris (Hostm. n. 370, 

 797 b , Kappl. n. 586, Kegel, aliique). 



C. racemosa , Met. Esseq. p. 86 , unice caule tereti bracteisque inferiori- 

 bus etiam minutis diversa , certe nil nisi lusus C. ramosae. Specimina plura 

 exacte cum Meteri adumbratione congrua, formis intermediis in genuinam 

 C ramosam transeuntia offendi. 



2. Coutoubett spicata (Aubl. /. c. p. 72. Tab. 27 mala. Mey. Esseq. 

 p. 86), annua, basi sublignescens, simplex vel ramosa , caule ramisque 

 feretiusculis , foliis basi leviter excisa sessilibus, infimis vulgo oblongis ob- 

 tusis, reliquis lanceolatis, utrinque attenuatis acutis, planis vel revolutis, 

 floribus spicatis oppositis vel subquaternis quaternisve, densis vel remo- 

 tioribus, corollae lobis acuminatis post anthesin reflexis. — C. densiftora, 

 Mart. Nov. Gen. 2. p. 112. Tab. 185. C. reflexa, Benth. in Hook. Journ. 

 Tom. 2. p. 45. C. lutea, Steüd. in Flora Ratisb. 1845. p. 765. 



In omni Guiana, in Brasilia boreali, locis apricis arenosis, haud 

 rara stirps. Hostm. n. 645 (C. lutea, Steud.); Kappler n. 1564. Species 

 admodum variabilis. Caules vel ramosi vel rarius indivisi. Folia vel cras- 

 siora breviora atque revoluta (C. rejlexa), vel majora et latiora (C. den- 



19 



