196 CAMPANULACEj;:. [Campamdacea. 



the bud. Stamens as many as the lobes of the coroHa, alternate with them, 

 hypog-ynous and free from tlie corolla-tiibe, or very rarely united to it at the 

 base. Anthers opening longitudinally, free or united in a ring round the 

 style. Ovary inferior, 2- or more celled, usually 3- or 5-celled, with numerous 

 ovules in each cell. Style simple, entire or divided at the top into as many 

 stigmatic lobes as there are cells to the ovniy. Fruit usually a capsule, open- 

 ing either in short valves at the top or in lateral pores or slits, rarely an in- 

 dehiscent berry. Seeds numerous, small. Embryo straight, in a fleshy al- 

 bumen. — Herbs or very rarely shrubs, with a juice usually milky. Leaves 

 alternate or veiy rarely opposite, undivided and usually toothed, without sti- 

 pules. Flowers axillary, solitary or clustered, or in terminal spikes, racemes, 

 or leafy panicles. 



A considerable Order, most abundant in the temperate regions of the northern hemisphere 

 or of southern Africa, with a few tropical or Australian species. 



Corolla very irregular. Anthers united round the style. 



Fruit an indehiscent berry. (Leaves orbicular, cordate.) . . . . 1. Piddingtonia. 



Fruit a capsule. (Leaves ovate, not cordate.) 2. Lobelia. 



Corolla regular, campanulate. Anthers free. Capsule 3- to 5-valved 3. Wahlenbekgia. 



1. PIDDINGTONIA, A. DC. 



Habit and characters of Lobelia and Pratia, only differing from the former 

 in the succulent indehiscent fruit, and from Pratia in the 2 upper lobes of the 

 corolla ascending and forming an upper lip, as in Lobelia. 



A genus confined to a single species, w^hich with Pratia might be better re-united with 

 Lobelia as a section. 



1, P. nummularia, A. DC. Prod. vii. 341. A prostrate slender more 

 or less pubescent herb, creeping and rooting at the nodes. Leaves stalked, 

 nearly orbicular, cordate at the base, toothed, about ^ in. diameter. Peduncles 

 axillary, 1 -flowered, longer than the leaves. Flowers small, purplish-blue, 

 very much like those of Lobelia trigona. Anthers with one short bristle on 

 each of the two lower ones, instead of the little tuft of hairs in X. trigona. 

 Berry ovoid-globular, 4 or 5 lines long, with a thin skin and not much juice, 

 and innumerable small seeds. 



Hongkong, Champon. A single specimen, mixed with the broad -leaved pubescent variety 

 of Lobelia trir/ona, which I had formerly confounded with it. Frequent in the mountains of 

 the central and eastern Himalaya and Khasia, also in Java and Formosa. 



2. LOBELIA, Linn. 



Calyx-tube short or ovoid, limb 5-lobed. Corolla slit open on the upper 

 side to the base, 5-lobed, the 2 upper lobes usually shorter and erect, forming 

 an upper lip ; the 3 lower spreading in a lower 3-lobed or 3 -toothed lip. 

 Anthers united in a ring round the style ; the 2 lower ones, or all, bearded 

 at the top by a small tuft of stift" hairs. Ovary 2-celled. Capsule opening 

 at the top in 2 loculicidal valves. — Herbs or rarely undershrubs. Pedicels 

 1 -flowered, axiUary, or in terminal racemes or spikes. 



A large genus, having the widest range in the Order, and although chiefly abundant in 

 temperate regions, it includes several tropical species. 



1, Ii. trigona, Roxb. ; A. DC. Prod. vii. 359 ; Wight, 7c. /. 1170. A 



