350 scROPHULAEiNE^. \Torenia. 



7. TORENIA, Linn. 



Calyx tuhular, witli prominent or winged angles, obliquely 3- or 5-tootlied, 

 or 3-lipped. Corolla with the upper lip erect or slightly spreading, emargi- 

 nate or a-lobed, the lower lip larger, spreading, 3-lobed. Stamens 4, their 

 anthers cohering or closely contiguous in pairs ; upper stamens straight, the 

 lower pair arched under the upper lip, witha tooth-like or filiform appendage 

 near the base. Style filiform, withn dilated slightly 3-lobed stigma. Capsule 

 oblong, not longer than the calyx, opening in 3 entire valves parallel to the 

 thin flat dissepiment. — Herbs. Leaves opposite. Eacemes terminal, short, or 

 reduced to clusters, or rarely to 1 or 2 flowers in the upper axils. Mowers 

 often large. 



A tropical or subtropical genus, dispersed over the Old World, with one species occurring ' 

 also as a weed in tropical America. 



Glabrous or slightly pubescent, decumbent at the base. Flowers pm'ple . . \. T. rubens. 

 Hairy and erect. Mowers yellow 3. T.flma. 



1. T. rubens, Smth. in BO. Prod. x. 410, var. grandiflora. A glabrous 

 or slightly pubescent annual, prostrate and rooting at the lower nodes ; the 

 flowering branches ascending to 6 in. or a ft., acutely 4-angled. Leaves on 

 short petioles, ovate, serrate, seldom above 1 in. long, rounded or slightly cor- 

 date at the base. Peduncles in the upper axUs, 1 to 3 in. long, scarcely 

 forming a raceme. Calyx oblong, with 3 narrow wings slightly decurrent on 

 the peduncle, 8 or 9 lines long in the Hongkong variety. Corolla dark purple, 

 scarcely twice as long. Appendage of the longer filaments short. — T. concoloTi 

 Lindl. Bot. Eeg. 1846, t. 63. 



Common on Victoria Peak and in other parts of the island, Champion, and others. Also 

 on the adjacent continent in Assam and in Formosa. The specimens originally described from 

 Assam have much smaller flowers, but their size is variable in the Chinese ones. 



3. T. flava. Ham. ; Benth. in BO. Prod. x. 411, var. grandiflora. An 

 erect branching hairy annual, 6 in. to 1 ft. high, the branches acutely angled. 

 Leaves stalked, ovate or oblong, serrate, 1 to near 2 in. long, cuneate at the 

 base. Flowers few, in terminal racemes • the floral leaves small and bract-bke, 

 except the lowest pair. Pedicels seldom \ in. long. Calyx 4 to 5 lines long, 

 5 -angled, acute at the base. Corolla nearly twice as long in the Hongkong 

 specimens, much smaller in the Indian ones, pale yellow, with a purple spot 

 in the throat. Appendage of the longer filaments shortly subulate. 



Hongkong, Marland. Also in the Himalaya and in Mergui. 



8. VANDBLLIA, Linn. 



Calyx either shortly tubular and 5-toothed, readily splitting after flowering, 

 or divided to the base into 5 segments. Corolla 'with the upper lip erect, 

 shortly 3-lobed, the lower larger, spreading, B-lobed. Stamens 4, their anthers 

 cohering in pairs under the upper- lip ; the upper stamens straight ; the lower 

 arched, with a tooth-like or filiform appendage near the base. Style filiform, 

 with a dilated often 3-lobed stigma. Capsule globular, oblong or linear, 

 opening in 3 entire valves, parallel to the thin flat dissepiment. — Herbs. 

 Leaves opposite. Flowers usually small, axiUai-y or in terminal racemes often, 

 contracted into umbels. 



