[Vor. 11 
190 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
about 8500 ft. alt., 30 Sept., 1917, Pennell 2279 (M); springhead 
in meadow, Zipaquira, Cundinamarea, 20-24 Oct., 1917, 
Pennell 2533 (М). 
Ecuador: Quitensian Andes, 1855, Couthouy (G); in the Andes 
Mts., 1857—59, Spruce 5168 (G). 
Bolivia: vicinity of Cochabamba, 1891, Britton & Rusby 1014 
(M); Bermejo, 16 Nov., 1903, Fiebrig 2077 (G). 
Argentine Republic: common in creeks, Andalgalia, 11 Sept., 
1915, Jórgensen 980 (M); Cordillera del Chubut, Corcobado 
- River, Feb., 1903, Illin 165 (Calif.); La Cienaga, Sierra de 
Tucaman, 17 Nov., 1874, Hieronymus & Lorentz 719 (U. 8.). 
While M. glabratus is closely allied to M. guttatus, it can readily 
be distinguished from that species by the shape of the mature 
calyx. This is broadly campanulate and the teeth do not fold 
over, closing the orifice. All of the teeth, except the upper one, 
are very short, sometimes hardly more than mucronate, giving 
a characteristic short stubby appearance to the fruiting parts. 
Variations occur, however, and in some specimens we find good- 
sized blunt teeth, all shorter than the upper one. Ordinarily, 
the plants are glabrous, but numerous specimens show a well- 
developed pubescence at the nodes, on the upper part of the 
stem and on the pedicels. This species and its varieties form the 
most widely distributed group in the genus, occurring from 
southern Canada, through Mexico and Central America to Rio 
Negro in Argentine Republic. 
25a. Var. Fremontii (Benth.) Grant, comb. nov. 
M. Jamesii var. Fremontii Benth. in DC. Prodr. 10: 371. 1846. 
M. Geyeri Torr. in Nicoll. Rept. Miss. 157. 1843; Nelson in 
Coulter & Nelson, Manual Cent. Rocky Mountains, 454. 1909; 
Woot. & Standl. Contr. U. S. Nat. Herb. 19: 587. 1915; Rydb. 
Fl. Rocky Mountains, 779. 1917; Britton & Brown, Ill. Fl. ed. 2, 
3:191, fig. 3778. 1913. 
M. Jamesii Torr. & Gray in Benth. DC. Prodr. 10: 371. 1846; 
Gray, Syn. Fl. №. Am. 21: 276. 1878, and ed. 2, 1886; Greene ш 
Bull Calif. Acad. Sci. 1: 118. 1885; Britton & Brown, Ш. Fl. 
3: 158, fig. 3268. 1896; Britton, Manual, 828. 1901, and ed. 2, 
1905; Conzatti & Smith, Fl. Sin. Mex. 117. 1897. Small, Fl 
Southeastern Т). S. 1063. 1903. 
