VOL. 5] Etrors in Southern California Plants. 109 



Ruellia leucantha. A shrub forming rounded clumps about 

 8 dm. high : stems pubescent, obtusely 4-angled : leaves oppo- 

 site, ovate, acuminate, 5-6 cm. long, 2-4 cm. wide, pubescent, 

 margins ciliate and entire or sub-repand, narrowed at base into 

 a petiole : flowers solitary, sessile in the axils of the leaves, crowd- 

 ed about the ends of the branches : bracts narrowly oblanceolate, 

 15 mm. long : calyx 5-parted, tube 2 mm. long, lobes i%— 2 cm. 

 long, linear-attenuate, pubescent : corolla white, 6 cm. long, 

 externally puberulent ; tube gradually ampliated into the obcon- 

 ical throat; lobes rounded, i x /z cm. broad: capsules pyriform, 

 acuminate, 15 mm. long, 8-10 ovuled ; seed nearly circular, 4-5 

 mm. wide, pubescent. 



Common along the slopes of the Cape Region Mountains. 

 Flowers can be found at any time of the year. 



ERRORS IN THE REPORTED STATIONS OF SOME 

 SOUTHERN CALIFORNIA PLANTS. 



S. S. PARISH. 



The student of local botany can address himself to no more 

 useful task than that of ascertaining, with accuracy, what are the 

 plants which inhabit his region, and to which of its several div- 

 isions each pertains. It this way he comes to understand cor- 

 rectly, and to be able to define, its life-areas, their subdivisions 

 and their interrelations; and while thus gaining a true knowledge 

 of his limited district, he, perhaps, may supply some factors for 

 the solution of the wider problems of phytogeography. 



Thus studied each plant, and each group of plants, presents 

 its own question. What are the influences which limit each 

 within narrower or wider boundaries? A question readily an- 

 swered in some cases; in many difficult and obscure; but in all 

 demanding first a correct knowledge of what those bound- 

 aries are. When, then, a plant supposed to be confined to a cer- 

 tain life-area, or which by reason of its affinities is presumedly 

 so confined, is reported from another— a desert species from the 



l-'Kii. 26. 19BL 



