WKSTKRX MIDDLE CALIFORNIA. 



1 1 



Anthers opening- by longitudinal slits; herbs. 



Fruit a capsule opening from the apex by valves or teeth; 

 petals 5 or 4. 



Calyx tubular or of 5 (or 4) distinct sepals; stamens 3 to 

 10, commonly 5 or 10; capsule 3 to 10-valved or 



-toothed; placenta? central; styles 2 to 5 



Oabyophyllaceje, p. 163. 



Calyx of 2 distinct sepals; stamens 5 (or 3 to many): 

 capsule 3-valved; placenta? central or basal; styles 2 



tO 8 PORTl I.ACACE.E, p. 184. 



Calyx tubular; stamens 4 to 7; capsule 2 to 4-valved; 



placenta? parietal; style 3-cleft 



Frank kniace.e, p. 162. 



Fruit indehiscent. 

 Style 1 or none; sepals and petals 4; stamens tetradyna- 



mous Crucifer.e, p. 210. 



Styles, sepals, petals and stamens 5 



Plumbauixace.e, p. 377. 



Ovary man tha/rt 1-ccllcd. 



Anthers opening by pores at the summit; sepals and petals 5 

 or 4, the stamens as many or twice as many; capsule 



5-celled Ericaoe.e, p. 367. 



Anthers opening bv longitudinal slits. 

 Herbs. 



Leaves alternate or basal. 



Sepals and petals 4; stamens 6. 



Ovary not stipitate; stamens commonly 4 long and 2 

 short (tetradynamous); sepals and petals 4; fruit 



a 2-celled capsule (silique or silicle) 



Crucifer.e, p. 210. 

 Ovary raised on a stipe; stamens not tetradynamous: 

 leaves 3-foliolate . . Capparidace-E, p. 229. 

 Sepals and petals 5; fruit a 5-celled capsule. 



Stamens 10, more or less united at base; leaves 



3-foliolate Oxalis, p. 245. 



Stamens 5; leaves simple . Linace.e, p. 243. 

 Leaves opposite; annuals. 



Calyx of 2 distinct sepals; flowers 2 to 5-merous; fruit 



a 2 to 5-celled capsule . Elatinace.e, p. 234. 

 Calyx tubular; stamens 10 and petals 5, the latter 

 clawed; fruit an imperfectly 3-eelled capsule . . . 



Silene Gallica, p. 165. 

 Shrub; fruit a simple samara; stamens and petals 2 each: 

 leaves opposite, pinnate. . Fraxinus dipetala, }>. 385. 



3. Stamens perigynous, i. e., on the calyx or on a more or less evident disk. 



Stamens on a hypogynous disk or on a disk lining the base of the 

 calyx. 



