Dowell: North American species of Calceolaria 555 



oblique at the base, glabrate, serrulate with low rounded teeth fur- 

 nished with white callous points, firm, 3-7 cm. long, 1.5-2.5 cm. 

 wide; petioles slender, terete, puberulent, 4-12 mm. long; stipules 

 minute, subulate, about 1 mm. long ; flowers solitary, axillary, 

 nodding ; peduncles filiform, finely puberulent, 1-3 cm. 'long ; 

 sepals lanceolate, 4-5 mm. long ; lip of the lower petal rhombic- 

 ovate, 6 mm. long, longer than the claw ; capsule 6 mm. long, 

 with a short beak. 



type. Specimen col 

 Barbara, alt. 250 m. 



J.E 



May 



14. Calceolaria humilis Rose & Dowell ; Rose, Contr. 



U. S. Nat. Herb. 10 : 125. pL 4.2. 1906 



Perennial ; stem herbaceous, branching from the woody base, 

 1—2 dm. high ; branches decumbent or ascending, pubescent in 

 two lines; leaves opposite, short-petioled, the blades 1-3 cm. 

 long, 1-2 cm. wide, orbicular to ovate, acute or obtuse, glabrous, 

 crenate -serrate, decurrent on the ciliolate petiole, which is about 

 2 mm. long ; stipules subulate to lanceolate and foliaceous, 

 4-8 mm. long, glabrous ; flowers violaceous, nodding, on slender 

 axillary puberulent peduncles, which are 6—8 mm. long, the bracts 

 opposite near the articulation ; sepals lanceolate, acuminate, 3- 

 nerved, glabrous, 4 mm. long ; lip orbicular, slightly longer than 

 the claw, 4-5 mm. long; the claw broadly winged, 5-nerved ; 

 lower stamens puberulent on the lower part of the connectile 

 above the gland-like appendages ; capsule ovoid-globose, with a 

 blunt beak, glabrous. 



Valley of Mexico : C. G. Pringle no. 965J, type. Specimen 



in the U. S. National Museum, collected July 30, 1901, on lava 



fields near Tizapan, alt. 2300 m. 



■ 



15. Calceolaria Rosei sp. nov. (Plate 22) 



Stem erect, simple or branched, angular and grooved, pubes- 

 cent with spreading hairs ; leaves alternate, short-petioled, obovate 

 to ovate, mostly obtuse, abruptly narrowed at the base and decur- 

 rent on the petiole, crenate, hirsute, rather firm, paler on the under 

 side', 2-4 cm. long, 1-2 cm. wide; stipules lanceolate, ciliate, 

 puberulent, variable in size, some foliaceous ; flowers axillary, nod- 

 ding, on slender puberulent peduncles, the minute bracts variable 

 in position ; sepals lanceolate, acuminate, ciliate, pubescent, 3- 

 nerved, about equal ; lip 3-nerved, glabrous, rhombic-orbicular to 

 broadly ovate, abruptly contracted on the narrow claw; claw 



