( 4070 ) 



Tetranema Mexicanum. Mexican 

 Tetranema. 



Class and Order. 



DlDYNAMIA AnGIOSPERMIA. 



Nat. Ord. — Scrophularin^:. ) 



Generic Character. 



Calyx 5-partitus, sepalis angustis acutis aestivatione im- 

 bricatis. Corolla distincte bilabiatae, labio superiore brevi 

 piano emarginato, lobis Iatis patentibus ; inferiore longiore, 

 patente, trifido. Stamina 4, basi declinata, dein ascenden- 

 tia, corolla breviora. Antherarum loculi divaricati. Stylus 

 simplex ; stigmate subcapitato. Capsula loculicido-bival- 

 vis; valvulis integris, medio septiferis a placenta demum 

 libera secedentibus. Semina numerosa angulata. Bentham. 



Specific Name and Synonyms. 



Tetranema* Mexicanum. 



Tetranema Mexicanum. Benth. in Lindl. Bot Reg-. 1843. 

 t. 52. 



Pentstemon Mexican us. Hort. 



A native, it would appear, of Mexico, introduced to our 

 collections from Belgium, under the name of Pentstemon, 

 from which Genus Mr. Bentham has separated the above 

 name and character. Dr. Lindlev speaks of it as a green- 

 house plant. In the Royal Botanic Gardens, it is treated 

 as an inmate of the stove, and in that situation it flowers 

 from November to May, each plant throwing up several 



flowering 



From m -fa, four, and »»/*», a filament; — four filaments, or stamens, as 

 distinguishing the Genus from Pentstemon, where, as the name implies, 

 tnere are five stamens. 



