190 CAL-YCANTHAC'E.i:. 



beneath, 1 to 2J in. long, abruptly oontracted at base to a broad 

 petiole, the surface covered with crystalline papillae; flowei-s sub- 

 sessile, 1 to 3 in each axil; calyx-lobes widely spreading, yellowish 

 within; fruit 4-horned, 4 to 6 lines long. 



Beaches of San Francisco Bay: Alameda aiid 31arin Cos. and South 

 San Francisco. 



5. MESEMBRYANTHEMUM L. Fig Marigold. 



Ours glabrous perennial herb. Stems and leaves very succulent, 

 the latter opposite, without stipules. Flowers axillary and terminal. 

 Calyx-tube adnate to the ovary, the lobes unequal and foliaceous. 

 Petals linear, very numerous, inserted with the innumerable stamens 

 on the tube of the calyx. Ovary in ours 10 to 12-celled, the styles as 

 many as the cells of the ovary and distinct or nearly so. Capsule 

 becoming baccate, dehiscing in rainy weather by stellate valves at 

 the flattened summit. Seeds minute, numerous. (Corruption of the 

 Greek mesembria, midday, and anthemon, blossom.) 



1. M. aequilaterale Haworth. Sea Fig. Stems several ft. long, 

 the plants often forming extensive mats; leaves 3-sided, with nearly 

 flat faces, thicker than broad, IJ to 2 in. long; flowers terminal, sub- 

 sessile or shortly peduncled, fragrant and showy {1} to 2 in. broad); 

 petals bright rose-purple; styles 6 to 10. 



Dunes and cliffs near the sea from Bodega Bay and Marin Co. 

 southward to San Diego. Known to students of the University of 

 California as "Faculty Onions." The fruits, which "taste like 

 salted apples," are eaten by schoolboys in Southern California (H. P. 

 Chandler). 



30. CALYCANTHACE/E. Sweet-shrub Family. 



Aromatic shrubs with opposite entire leaves and no stipules. 

 Flowers large, solitary, terminating the branches. Bracts, sepals and 

 petals passing into each other, imbricated in many series, adnate at 

 base to the enlarged hollow receptacle which is like a rose-cup. 

 Stamens numerous, the inner ones sterile. Pistils manj', distinct, 

 nearly enclosed in the hollow receptacle, becomings achenes. 



1. CALYCANTHUS L. 



Flowers livid red. Petals in several rows at mouth of tube, the 

 inner ones shorter. Stj'les equaling the anthers, filiform, colorless. 

 Seed without endosperm; cotyledons foliaceous, convolute. (Greek 

 kalyx, covering or calyx, and anthos, flower.) 



1. C. occidentalis H. & A. Western Sweet-scented Shrub. 

 Erect branching shrub 5 to 9 ft. high; leaves ovate to oblong- 

 lanceolate, acute at apex, rounded at base, IJ to 6 in. long; sepals and 

 petals linear-spatulate, 1} in. long or less, the upper J or J fading 

 tawny or brown in age or in drying; filaments about J line long; 

 fruiting calyx cup-like, 1} in. long; achenes oblong, somewhat 

 velvety-hii'sute, nearly ?> lines long. 



