208 OXALIDACEAE. 



G. RiCHARDSONi F. & M. Stems 3-6 dm. high; leaves thin, 

 5-12 cm. broad, incisely 3-5-parted; flower 18-20 mm. broad, white 

 or lavender with rose-colored veins. 



Frequent in open pine woods and meadows in the San Bernardino 

 and San Jacinto Mountains. June-August. 



2. ERODIUM L'Her. Alfilerilla. 



Herbs with mostly jointed nodes, opposite or alternate 

 stipulate leaves, and axillary umbellate nearly regular 

 flowers. Sepals 5, imbricated. Petals 5, hypogynous, 

 imbricated, the 2 upper slightly smaller. Glands 5. 

 Anther-bearing stamens 5, with slightly dilated filaments 

 alternating with as many sterile filaments. Styles be- 

 coming spirally coiled after splitting away, pubescent on 

 the inner face. Carpels closed. 



Leaves rounded, crenately toothed or lobed. 1. E. macro phyllum. 

 Leaves pinnate. 



Leaflets unequally and doubly serrate; 



sepals not terminated by bristles. 2. E. moschatum. 



Leaflets laciniately pinnatifid; sepals with 



1 or 2 terminal bristles. 3. E. cicutarium. 



1. E. macrophyllum H. & A. Mostly nearly or quite acaules- 

 cent, tomentose with copious interspersed long glandular hairs at 

 least on the pedicels; leaves triangular-ovate or reniform, crenate- 

 serrate, sometimes crenately-lobed; peduncles exceeding the leaves, 

 accrescent, at length 1 cm. long; petals equaling the sepals, dull 

 white; carpel clavate, densely velvety-pubescent; seeds smooth. 



Occasional in dry grassy places in the valleys or low foothills. 



2. E. moschatum Willd. Acaulescent and prostrate or with 

 ascending branches, mostly rather stout and glandular; leaves 

 rather ample; stipules large, obtuse; leaflets unequally and doubly 

 serrate; peduncle several-Mowered ; flowers rose color or purple, on 

 rather short stout pedicels; sepals not terminated by long bristles; 

 antheriferous filaments 2-toothed. 



The more prevailing species in the coast valleys. Native of 

 southern Europe. 



3. E. cicutarium (L.) L'Her. Much resembling the last, but 

 more slender and less glandular, often coarsely canescent; leaflets 

 laciniately pinnatifid with narrow, acute lobes; pedicels slender; 

 petals rose color or purple; sepals with 1-2 terminal bristle-like hairs; 

 filaments not toothed. 



The prevailing species of the interior valleys and foothills. 



Family 51. OXALIDACEAE. Wood-sorrel Family. 



Annual or perennial, leafy stemmed or acaulescent 



herbs, often with rootstocks or scaly bulbs, with sour 



