Tab. 6332. 

 ruellia acutaxgula. 



Native of Brazil. 



Nat. Ord. Acanthace.e. — Tribe Rueixie.e. 

 Genus Ruellia, Linn. ; (Bentk. et Hook./. Gen. Plant, vol. ii. p. 1077.) 



Ruellia (Arrhostoxylum) acutangula ; herba elata v. frutex, glabra v. hirsuta, 

 ramis 4-gonis, foliis elliptico-ovatis acuminatis nervosis basi in pctiolum 

 angustatis, cymis erectis glanduloso-pubescentibus, bracteolis oblongo-lan- 

 ceolatis, calycis teretiusculi segmentis obtusis coriaceis integerrimis, corollas 

 aurantiaco-coccineae ore flavo, tubo lent© eurvo pollicari, limbi 2-poll. diam- 

 etro lobis oblongis apice rotundatis, staminibus exsertis. 



R. acutangula, Nees in Mart. Herb. Fl. Bras. n. 233, in Flora, 1838, vol. ii. p. 61. 



Aurhostoxylum acutangulum, Nees in Mart- Flor. Bras. Acantk. p. 58. 



Pedicularis sceptrum-marianum, Vellozo, Flor, Flum, iii. t. 104. 



A native of shady forests in Brazil, in the neighbourhood 

 of Eio de Janeiro and elsewhere ; from whence it was intro- 

 duced into cultivation by Mr. Bull, with whom it flowered in 

 May of the present year. It is one of the handsomest species 

 hitherto figured of the splendid genus to which it belongs, 

 and rivals the R. macrophjlla of our tab. 4448 (Stcmonacanthus). 

 The genus Arrh&stoxylum, to which Nees latterly referred 

 this and many other allied Acanthacca>, has been reduced to 

 Ruellla by Bentham in the Genera Plantarum ; it contains 

 many Brazilian species. The figure of R. acutangula, in 

 Vellozo's ' Flora Fluminensis,' is very characteristic, though 

 rough ; in it the lower leaves are represented as ovate and 

 rounded at the base, the upper are exactly as in our plant. 

 Nees describes the species as either glabrous or hirsute, and 

 the capsule as 12 -seeded. 



Descr. A large herb or undershrub, glabrous or hirsute ; 

 erect, branched. Branches obtusely four-angled, stout, green, 

 most hairy in the hollowed faces between the angles. Leaves 



SElTEMBEIt 1ST, 1878. 



