a 
GAMOPETAL&. 
DIVISION 2.—_GAMOPETALA. 
A. OVARY INFERIOR (adherent to the calyx) or mainly so. 
Stamens 8 or 10: corolla-lobes 4 or 5: SHTUDS.... .eceecseeses ce cceeees sSULICACO, 
Stamens 10, those alternate with small corolla-lobes aterile, inflexed........Samolus, 
Stamens 5 (rarely 4), united into a tube. 
Style 2-cleft: flowers in a flower-like head.............-- aeeee-- Composites, 
Style and stigma entire: flowers irregular. (See p. 13).......-- ..- Lobeliacesx, 
Stamens 4 or 5, distinct, growing at the base of the corolla...,...Campanulacea, 
Stamens on the corolla-tube: leaves opposite or whorled. 
Leaves connate: corolla 4-lobed: stiff, prickly herbs..... sieoereina ea . .Dipsacus, 
Leaves opposite, corolla mostly 5-lobed..............++-++--.. Caprifoliacess, 
Leaves whorled or sometimes opposite: corolla 4-lobed............. Runpiacesz, 
Leaves unequal: prostrate: calyx corolla-like. (See Cal. Flora.)....... Abronia, 
Stamens only 3: corolla 5-6-lobed: calyx-lobes minute or none. Herbs. 
Leaves opposite; stamens distinct: erect herbs............ .... Valerianacess, 
Leaves palmately nerved, alternate: tendril-bearing vines..... .Cucurbitacess, 
Stamens apparently 1, really 3 united: flowers monecious.........Cucurbitacess, 
B. OVARY SUPERIOR (free from the calyx) or nearly go. 
1. Flowers regular or nearly so. ; 
* Stamens twice as many as the lobes of the corolla. 
Corolla bell-shaped or inflated-ovoid........... Boe a eee ae eiateeeee --...Ericacem, 
Corolla deeply 5-8-cleft, the base united with the Slamenta, 38 die abies Styracacess, 
Corolla 5-cleft: pistils or styles 5: fleshy herbs...... sustelge ore. Crassulaces, 
** Stamens as many as the corolla-lobes, 
a. Style 1, stigma 1: leafless, root-parasite.... ...0c.ceeenee siuias cena Pholisma, 
b. Style 1, stigma 1: leaves entire (lobed in the first and last). 
Leaves mostly radical, reniform: stamens unequal..... eee ee rser ene e- homanzofia, 
Leaves all radical; flowers spicate, colorless, scarious,..... ---.-..Plantaginacess, 
corolla reflexed: anthers purple-black.............. Dodecatheon, 
Leaves alternate. Spikes coiled: ovary in 4 parts................. Borraginaces, 
Flowers rotate to funnelform or tubular...... -.....Solanaces, 
Tall shrub: 3 to 5 calyx-like bracts: flowers yellow... . Fremontia, 
Leaves opposite (at least below), entire: juice milky: ovaries 2; stigmas united. 
Flowers white or pinkish in terminal cymose clusters........... Apocynacess, 
Flowers in umbels: sepals and petals reflexed or rotate.......Asclepiadacegs, 
Leaves opposite, ovate, sessile: flowers rotate, axillary, solitary.......... Anagallis, 
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