52 Flora of the Malayan Peninsula. 



lobed or -partite, lobes usually persistent in fruit, valvate or imbricate- 

 in bud. Corolla gamopetalous, tubular, rotate or campanulate, superior, 

 sometimes bilabiate ; lobes as many as those of the calyx, valvate or 

 induplicate-valvate, sometimes 1, 2, or all free to the base. Stamens 

 equal in number to the corolla-lobes and alternate with them ; inserted 

 on the epigynous disk or (in Sijhenoclea) on the corolla-tube ; filaments 

 free or connate in a tube ; anthers linear, oblong or ovate, free or 

 connate in a tube, 2-celled, the cells parallel, dehiscing longitudinally and 

 introrsely. Ovary usually inferior, 2-5- rarely more-celled ; placentas 

 axile, many ovuled; style simple, clavate, within the staminal tube; 

 stigma-lobes as many as the ovary-cells ; ovules anatropous, erecti 

 horizontal or pendulous. Fruit capsular or baccate, crowned by the 

 persistent calyx-lobes, dehiscing vertically or laterally, or indehiscent. 

 Seeds very many, small, albuminous ; testa thin, coriaceous ; embryo- 

 erect, radicle inferior. — Disteib. Over 1,000 species, scattered 

 throughout the globe, chiefly in temperate regions. 



Tribe I. LOBELIE^E. Corolla 2-lippecT, cleft dorsally to the base ; anthers connate. 

 Fruit a capsule, 2-valved at the summit . . . . 1. Lobelia. 



Tribe II. CAMPANULEiE. Corolla regular ; anthers free or imperfectly connate. 



Flowers solitary, peduncled . . . . . . 2. Campanum^a. 



Flowers in a dense scorpioid spike . . . . . . 3. Pentapheagma^ 



Flowers in a dense cylindric spike . . . . . . 4. Sphenoclea. 



1. Lobelia, Linn. 



Herbs of various sizes, sometimes very small, sometimes erect and 

 very tall; undershrubs or shrubs. Leaves alternate, usually toothed. 

 Inflorescence either 1-flowered, in the axils of leaves or bracts, or in a 

 terminal leafy raceme ; bracteoles very small or none. Calyx-tube 

 adnate to the ovary, turbinate, hemispheric, obovoid or rarely oblong- 

 linear ; limb 5-partite or 5-fid, lobes often unequal. Corolla oblique, 

 2-lipped ; upper lip 2-, lower 3-partite or -lobed. Staminal tube free 

 from the coi'olla or adnate only at the base ; anthers with 2 lower 

 tipped with bristles, 3 upper naked, or else all penicillate. Ovary 

 inferior, 2-celled ; placentas hemispheric ; ovules numerous ; stigma^ 

 shortly bifid. Capsule loculicidally 2-valved within the calyx-tube. 

 Seeds very many, minute, ellipsoid, compressed or trigonous. — Distkib. 

 About 200 species, throughout the world, though scarce in Europe and 

 Western Asia. 



Lobelia affinis, Wall. Cat. 1311. A prostrate often rooting herb 

 with much - branched stem, pubescent or glabrate. Leaves ovate- 

 262 



