BOT.-VOL. I.] EASTIVOODSTUDIES FROM THE HERBARIUM. 107 



petioles shorter than the blades : umbel with from 10-18 fruiting rays 3-8 cm. 

 long ; peduncles stout, solid, dilated at summit, 15 cm. tall, 5 mm. in diam- 

 eter, slightly glandular-pilose when young, becoming glabrous and striate 

 with age ; involucre a single, elongated bract, palmately divided at the apex ; 

 involucels several, linear-attenuate, 5-10 mm. long, equalling the fruiting pedi- 

 cels ; sepals fleshy, triangular, inconspicuous ; corolla yellow, petals ovate- 

 acuminate, strongly nerved and incurved: fruit elliptical, cordate at each 

 end; wings equalling or a little broader than the body; ribs filiform, incon- 

 spicuous ; oil tubes variable in size and number, generally two in the inter- 

 vals, six on the commisural surface, one occasionally in a wing. On the 

 dorsal side the tubes vary from six to nine. Sometimes there will be one 

 large tube between the ribs, sometimes two, either large or small, and occa- 

 sionally one occurs, as in the figure, at the intersection of the wing. The oil 

 is very abundant and has an odor almost identical with that of the oil of 

 bergamot. 



It was collected on sand cliffs overhanging briny arroyas 

 and the plants were in flower but still retained the fruiting 

 stems of the preceding season. 



POLEMONIACE^. 



52. Gilia Nevinii Gray, Syn. Fl., p. 411. "Guada- 

 lupe Island," 



Reported from Santa Rosa, Santa Cruz, Santa Catalina, 

 and San Clemente. On San Nicolas it was found on 

 sandy heights above a brackish stream. 



This specimen is too poor for certainty and seems to 

 approach G. multicaiilis . It differs from the plant com- 

 mon on Guadalupe and the other islands. The glandular, 

 hairy pubescence is denser, the leaves less finely divided, 

 with shorter divisions, the calyx and its divisions shorter, 

 and the corolla smaller. The appearance is that of a 

 depauperate specimen of G. Nevinii. The fruit is not ripe. 

 The flowers were pale blue. 



CONVOLVULACE^. 



53. Convolvulus macrostegius Greene, Bull. Cal. Acad. 

 Sci., Vol. I, p. 208. " Guadalupe Island, in the crevices 

 of basaltic rocks." 



