Compositae 389 



the corolla up to near the throat, then monadelphous 

 and free, or adnate on 1 side only ; anthers oblong, the 

 3 larger naked, the 2 shorter tipped with a tuft of very 

 short bristles. Ovary and capsule as in Lobelia. 



1. L. debilis serrata Gray. Stems simple or rarely branched 

 above, 2-6 dm. high, very leafy, glabrous except the inflorescence, 

 this puberulent ; cauline leaves lanceolate-linear or lanceolate, 

 the lower broader, spatulate to obovate, all sharply serrate, 

 the uppermost passing into slender bracts ; racemes few-many- 

 flowered ; pedicels slender ; calyx-lobes narrowly-subulate, twice 

 the length of the tube, and nearly equaling the corolla ; corolla- 

 tube slender, 2 cm. long, in age splitting up from the base as in 

 Lobelia, pale blue ; the larger lobes deep violet, 6-8 mm. long. 



Frequent in moist places in the canyons of the San Gabriel and Santa 

 Ana Mountains. 



Family 95. COMPOSITAE. SUNFLOWER FAMILY. 



Annual or perennial herbs or shrubs with alternate or 

 opposite leaves. Flowers in heads, borne on the enlarged 

 summit of the peduncle (receptacle) and surrounded by 

 the bracts of the involucre. Receptacle naked or with 

 bracts subtending the flowers or with bristles among the 

 flowers. Calyx-tube united with the ovary, the limb 

 when present called pappus, and consisting of awns, 

 hairs, bristles, scales or paleae. Corolla tubular and 

 5-toothed or 5-lobed, or the limb strap-shaped (ligulate) 

 and toothed or entire at the apex, those of a head all 

 tubular, all ligulate or of both kinds. When both kinds 

 are present the marginal ones are ligulate and are called 

 ray-flowers, the inner are tubular and are called disk- 

 flowers. Stamens 5 ; filaments free ; anthers united and 

 forming a tube, or nearly or quite free in Ambrosiae and 

 the filaments more or less cohering. Styles 2-lobed, the 

 lobes stigmatic on the inner surface. Ovary 1-celled, 

 becoming an achene in fruit. Pappus commonly per- 

 sistent. 



