VERBENACE^. 201 



EXCLUDED SPECIES. 

 OROBANCHE SPECIOSA. D. C. 



A single specimen of tliis species occurred in a garden at 

 Bridgewater, in 1860, parasitical on the common garden pea. 

 It is the 0. pruinosa of La Perouse. 



OUDER LI*.— A CANTHACE^. 



EXCLUDED SPECIES. 



ACANTHUS MOLLIS. Lin7i. 



Formerly found in the island of St. Agnes, Scilly ; no doubt 

 introduced. Mr. F. Townsend, in 1863, was unable to see or hear 

 that it was still in existence, so that it is probably extinct. 



ORDER LII.— V ERBENACE^. 



Herbs, shrubs, or trees, with opposite or (rarely) verticillate 

 leaves and no stipules. Plowers perfect, irregular or nearly 

 regular, generally in spikes, heads, racemes, or cymes, rarely soli- 

 tary. Calyx free from the ovary, persistent, tubular, monosepa- 

 lous, 2- to 5-toothed. Corolla hypogynous, monopetalous, gene- 

 rally more or less bilabiate and ringent, sometimes with the 

 limb spreading so as to be nearly salver-shaped. Stamens 4, didy- 

 namous, the 2 uppermost often imperfect, very rarely 5. Ovary 

 entire, not 4-lobed, 2- or 4-celled. Style terminal. Stigma undi- 

 vided, or sometimes bilobed. Ovules 1 in each cell when there 

 are 4, 1 or 2 in each cell when there are only 2 cells in the ovary. 

 Pruit dry or drupaceous, generally splitting when ripe into 2 or 

 4 indehiscent cocca or nucules containing 1, rarely 2 erect seeds. 

 Seeds solitary in each cell. Embryo straight, large, not surrounded 

 by albumen, or with only a small quantity of fleshy albumen. 



VOL. VI. 2 D 



