l62 CALIFORNIA ACADEMY OF SCIENCES. 



thin margin of the outer ones as well as their radicular 

 prolongation, erose-fimbriate. — Between San Pedro and 

 La Paz. 



454. DicLiPTERA REsupiNATA Juss. ? This must be 

 the plant so listed by Dr. Gray in the collection of Xan- 

 tus. The pedicels are however much shorter than in 

 Cavanilles' plate, and densely spreading-hirsute. The 

 whole plant is pubescent and the murications of the seed 

 are sparse and not subulate. 



455. DicLiPTERA FORMOSA. Perennial, woody at 

 base: stems numerous, often a metre in height, rather 

 densely spreading-pubescent, sparingly branched : leaves 

 lanceolate-acuminate, pubescent above and below, 4-6 

 cm. long, the lower on slender petioles ^ their length, 

 inflorescence in loose and distant verticillasters ; peduncles 

 very short, often nearly obsolete, with two linear-acu- 

 minate bracts at summit; pedicels 3-5, densely spread- 

 ing-hirsute, usually much shorter than the foliar bracts 

 which are cordate-ovate, pubescent, 18-25 mm. long, 

 barely mucronate ; internal bracts rather broad acuminate- 

 pubescent like the calyx and about equaling it: calyx 4 

 mm. long, the acuminate lobes twice as long as the tube: 

 corolla rose-purple, 30-35 mm. long, 2-lobed nearh^ to 

 the middle; proper tube narrow, about as long as the 

 little broader throat; upper lobe ovate, entire, lower ob- 

 long, narrower, minutely 3-lobed, filaments veiy broad, 

 nearly as long as the corolla; stamens oblique, disjoined: 

 style as long as the stamens, the lobes obtuse and equal; 

 capsule oval, glabrous, 4-seeded, seeds flattened, pubes- 

 cent-muricate. — Summit of the Sierra de San Francis- 

 quito. 



456. DiANTHERA, sp. Somewhat intermediate be- 

 tween this genus and Siphonoglossa. — San Bartolome. 



