92 BOliANACIlK. 



Stems slender, low, growing on saU-marsh plants .......8 



Stems coarser: corolla mnch exceeding the calyx, 2^ to 4 lines long 4 



Stems coarse: corolla lobes acnte, usually luflexed S, 



1. C. arvensis, Beyrioh. Flowers scarcely a line long in dense clnstera. 



2. C. Califomlca, Choisy. Calyx lobes acute: corolla lobes slender. 



3. C. sallna, Engelm. Delicate white flowers 1^-2^ lines long. 



4. C. subinclusa, D. & H. Flower clusters globose, 6 to 12 lines thick. 

 6. C. decora, Choisy. Flowers fleshy and papillose: clusters close. 



6. O. racemosa, Martins, var. Chiliana, Eagelm. Corolla thin. From Chili 



SOLAN ACE J:. 



Corolla rotate: anthers connivent around the style: fruit a berry 1 



Corolla rotate-campanulate: anthers not connivent: berry enclosed in the loose inSated 

 calyx. May appear in cultivated ground. PhysaXis. 



Corolla tubular-fnnnelform, J in. long or less: spiny shrubs 2 



Corolla funnelform, large: fruit large, covered with spines 3 



Corolla funnelform or tubular: capsule small, smooth 4 



Corolla funnelform, 3-5-line3 long: limb purple: stamens unequal 5 



1. SOLANTJM, Tournefort. 



Corolla deeply 5-cleft, white or bluish: berries black or red 1, 3 



Corolla only 5-angled or slightly lobed, violet or blue ., 3, 4 



1. S. nigrum, L. Herbaceous: leaves mostly ovate, sinuate-toothed, acuto. 



2. S. Douglasii, Dunal. Woody-stemmed: flowers 5-8 lines broad, often bluish. 



3. S. Zanti, Gr. Woody at base: hairs jointed: leaves mostly obtuse at base. 



4. S. umbelliferum, Esoh. More woody: hairs branched: leaf -base mostly narrow. 



2. LYCIUM, Linnjeus. 



1, II Calif omicum, Nutt. Leaves fleshy, 1-3 lines long: flower parts in 4*8, 



2. Il Andersoni, Gr, Leaves larger: flowers largei, 6-6 lines long. San Diego. 



3. DATURA. Linnaeus. 



Calyx acutely 5-angled: fruit erect, ovoid 1, 2, 8 



Fruit nodding, globose " — 4 



Calyx scarcely angled: corolla 5 or 6 in. long: fruit nodding globose A 



1. D. Stramonium, L. Smooth: corolla white: lower prickles of capsule shorter. 



2. D. Tatula, L. Similar: Stems usually purple: corolla pale violet. 



3. D. quercifolia, HBK. Leaves sinuate pinnatifid: prickles unequal, flat. 



