256 Loasaceae 



long; Beeds usually in 1 row, short-prismatic, the 3 angles 

 grooved, the sides faintly tuberculate. (.)/. albicaulis integrifulia 

 Wats. ; M. dispersa Wats.) 



Said to occur in our mountains, but not seen by us. 



2. M. affinis Greene. Steins stouter, 3-6 dm. high, simple 

 and leafy below, widely branching above; leaves lanceolate, 

 deeply sinuate-pinnate ; Mowers scattered, 12 mm. broad; calyx- 

 lobes attenuate, subulate, 4-(i mm. long; filaments all filiform; 

 capsule 2.5 cm. long, almost linear, hispid with short stiff hairs; 

 seeds prismatic, with grooved angles. 



Frequent in the upper portions of the chaparral belt and among the pines. 

 May-July. 



3. M. micrantha T. & G. Rather slender, 3-6 dm. high, 



simple below, corymbosely and rather compactly dichotomous 

 above; leaves ovate, acute or acuminate, serrate or sinuate- 

 toothed or entire, 2.5-5 cm. long; flowers small, shorter than 

 the floral leaves; calyx-lobes 2 mm. long; petals oval, 3 nun. 

 long; 5 outer stamens with dilated filaments; capsule cylindric 

 or nearly so, B-12 mm. long, few-seeded; seeds prismatic, with a 

 very shallow groove, the sides faintly tuberculate. 

 Occasional in the chaparral belt throughout our range. 



4. M. gracilenta T. & G. Stems rather stout, 3-4 dm. high, 



branching from the base; leaves narrowly lanceolate, pinnatifid, 



with many narrow lobes, or only sinuate-toothed ; flowers usually 



clustered; calyx-lobes 4-10 mm. long; petals obovate to oblanceo- 



late, 8-1 (5 mm. long; filaments subulate-filiform ; capsule Blightly 



clavate-dilated, 12-24 mm. Ion- ; seeds iii 3 rows: irregularly 



angular, minutely tuberculate, 1.5 mm. long. 



Frequent on the plains and foothills and also on the sand-dunes along the 

 seashore. 



** Petals usually /<>, 25 mm. long or more. 



5. M. laevicaulis (Dougl.) T. & <;. (Blazing Stab.) Bien- 

 nial; stem stout, erect, branched above, 6-10 dm. high, often 

 white; leaves lanceolate, sinuate-toothed, 5-15 cm. long ; flowers 

 sessile on short branches, 6-8 cm. broad, light yellow, diurnal; 



calyx-tube naked; calyx-lobes 2.5 cm. long or i -e ; petals In, 



rarely 5, obJanceolate, acute; stamens numerous, about equaling 



the petals in length, the outer with dilated filaments; eapsule 

 3 cm. long; Beeds many in double rows on the 3 placentee, 



