Characters of the Botanical Alliances, 129 



17. Lamiales. — Stems round or tetragonal with perfect 

 nodes, not lactescent ; stipules 0. Inflorescence not gyrate. 

 Calyx persistent, odd calycine division superior. Corolla mo- 

 nopetalous, not plaited, more or less irregular, hypogynous, 

 deciduous. Stamens not exceeding 5, 2 or 4 or rarely 5 (some 

 Myoporaceae) fertile, stamens (above 2) not of the same length 

 (exc. some Verbenaceae), adherent to the corolla, alternating 

 with the coroUine divisions. Carpels 2,* forming independent 

 cells, free from the calyx, connate with each other in the bud, 

 carpellary midrib facing the odd sepal. Style 1, stigma of not 

 more than 2 divisions. Fruit dry, nucamentaceous. Ovules 

 erect or pendulous, not more than 2 in each cell.s^?aK?w6r^o 

 straight, cotyledons foliaceous. 



18. Rhinanthales. — Herbaceous or frutescent or parasitic, 

 not lactescent, stems round or tetragonal with perfect nodes ; 

 leaves rarely absent (Orobanchacese), not compound, opposite 

 or verticillate on the tetragonal stems ; stipules 0. Ivflorescence 

 not gyrate. Calyx more or less divided, odd calycine division 

 superior, persistent. Corolla hypogynous, monopetalous, irre- 

 gular, imbricate. Stamens not more than 5 (exc. Disandra), 

 2 or 4 fertile, scarcely declinate ; anthers opening longitudinally. 

 Carpels 2, midrib facing the odd sepal (exc. on the transition 

 to Polycarpelli), connate with each other, free from the calyx. 

 Styles more or less connate. Fruit a capsule or rarely a berry 

 (Leucocarpus, Teedia, Hemiphragma). Albumen inclosing the 

 embryo. — Inclining to a temperate habitat. 



19. Ericales. — Not truly arboreous, not lactescent ; leaves 

 rarely absent (Monotropaceae), simple, entire ; stipules 0. 

 Flozvers regular. Calyx of 4 or 5 divisions, monophyllous. 

 Petals connate or subconnate with each other or the plant pa- 

 rasitic. Stamens of the same number as the coroUine divisions 



• Dr Lindley considers the carpels as 2, each bilobed, because : — 



1. Thej stand in pairs in the position of bicarpellary Scrophulariaceae ; 



2. The bifid stigma ; 



3. VerbenacesE split into two bilocular halves, e. g. Cloanthes ; 



4. Monsters : — When the number of carpels is multiplied in praetematural 



cases {e. g. Coleus aromaticus), the additional carpels are always in 

 pairs, and the number of additional stigmas corresponds. 



VOL. XXV. NO. XLTX. JULY 1838. I 



