350 4f$ SALVIA ERAZILIENSIS. [CL. II. 



Habitat in Brasilia. 



Caiilis herbaceus, quadrangularis, glaber, nodosus. Folia 

 opposita, longe petiolata, petiolis sesquipollicaribus, angulatis, 

 glabris, ovata, acuminata, basi cuneata, inaequaliter obtuse 

 serrata, nervoso-venosa sesquipollicem longa, supra pollicem 

 lata. Raccmi terminales, pubescentes. Flores subverticilla- 

 ti, ebracteati. Calyx puniceo-roseus, unguicularis, amplia- 

 tus, nervosus, pubcscens, apice tridentatus. Corolla inclusa, 

 sordide rubra, bilabiata, labio suj^eriori fornicato, inferior! tri- 

 lobo. Stamina duo, basi appendiculata. Pistillum apice fis- 

 sum. Achenia quatuor. 



Proximae S. lieg'la, Cav., et S. gakata R. et P., sed diife- 

 runt colore calycis, et corolla calycem excedente. 



CLASS III. 



Poa trivialis, L, 



Gemeines Wiesen-, Vieh- oder Rispengras. — French, Pdtu- 

 rin rude. — Ital. La fienarola comvne. — Engl. Rougldsh 

 Meadow-grass. — Swed . Angs-grds. 



This grass, although a very common one, may easily be 

 confounded with others which are nearly related to it. We 

 have, therefore, subjoined an exact description and compa* 

 rison of it with these others. 



From a fibrous root there rises a round stalk, sharp to the 

 touch, about the length of an ell or arm. AVhcre the leaves 

 rise from the sheath, a long ligula remains, (77.) The leaves 

 are small, and, at the same time, sharp to the touch. The 

 flowers are produced on a uniform, spreading panicle, the 

 subordinate stalks of which are horizontal, or even reflex, 

 and also sliarp to the touch. The individual ears consist 



