[Vor. 11 
176 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
spotted with red; style puberulent, slightly exserted; capsule 
oblong, short-stipitate, more than half as long as the calyx; 
seeds reticulate. 
Distribution: local in the foothills in Nevada Co., in Tehama 
Co., and in the northern part of Butte Co., California. 
Specimens examined: 
California: 8 miles south of Vina in wet sand, edge of Pine Creek, 
Tehama Co., 29 April,.1914, Heller 11340 (Cornell, F, and 
Greene); Berry Canyon, near Clear Creek, Butte Co., 6 May, 
1902, Heller & Brown 5461 (Cornell, F, M, R. Mt., and 
Pomona); Chico, Butte Co., March, 1899, Copeland (Stanford); 
Little Chico Creek, Butte Co., April, 1883, Austin 213 (Greene, 
Calif. Acad., TYPE, and Calif.); Little Chico Canyon, Butte 
Co., 1896, Austin 159 (M); Chico, Butte Co., 15 May, 1903, 
Copeland 8177, distributed as C. F. Baker 3177 (M, F, R. Mt., 
and Pomona); Сайоп of Big Chico Creek, Butte Co., 2 July, 
1914, Heller (M); Butte Co., June, 1889, Parry (M); low 
ground, 12 miles north of Chico, 29 April, 1914, Heller 113400 
(M); Chico Creek, April, 1885, Gray (G); Chico, June, 1890, 
Greene (Greene); Penn Valley, west of Grass Valley, Ne 
Co., 24 May, 1919, Heller 13191 (Cornell). 
М. glaucescens is unique in the genus by reason of its glaucous, 
connate-perfoliate upper leaves. 
16. M. nudatus Curran ex Greene in Bull. Calif. Acad. Sci. 1: 
114. 1885; Gray, Syn. Fl. N. Am. ed. 2, 2: Suppl. 449. 1886. 
A nearly glabrous annual; stem terete, freely branched from 
the base, erect or ascending, 9-30 cm. high, branches mostly 
reddish-purple; leaves very few, scattered, long-petioled, narrowly 
spatulate to oblanceolate, 1-3 em. long, 1-5 mm. broad, den- 
ticulate, the upper sessile and mostly linear; pedicels erect Р 
flower, little longer than the corolla, becoming elongated іп fruit, 
spreading or divaricate, rarely recurved; calyx ovate, cal 
panulate, somewhat elliptical in fruit, 9-12 mm. long, 
glabrous, even at the sinuses, teeth nearly equal, obtuse, 
lower folding over the lateral ones and nearly closing the orifice; 
corolla 1.5-2 em. long, tube exserted, throat densely bearded : 
dotted with red below the lower lip; style puberulent, 801 
