10 Contributions from the Gray Herbarium 
possible of correlation with geographical distribution or with other 
characters that are constant. 
9. M. praecox Smiley, in herb., planta 4-5 dm. alta glabra; 
caulibus infirmis; foliis glaucescentibus, caulinis (radicalibus igno- 
tis) sessilibus vel semi-amplexicaulibus ovato-ellipticis, vel super- 
ioribus suborbiculatis 6-9 cm. longis 3-4.5 cm. latis; pedun culis 
aeillartbus 4-10 cm. longis; racemis subcorymbosis alice riter 
laxis; ey oan fere 5-partito, lobis glabris vel paul ciliatis ovatis 
(Tyee, Gray Her 
The very broad rounded leaves and narrow almost exactly tubu- 
lar corollas are characters that give this plant a very different 
aspect from M. arizonica, var. wmbratilis, its closest relative. That 
plant is so variable, however, that M. praecox might be regarded 
as merely a broad-leaved form were it not for the fact that it seems 
to bloom in the same locality about a month earlier. Although the 
type specimens were secured May 28, they are largely in fruit, and 
June 28, of the same year Professor Smith secured at the same lo- 
cality the variety of M. arizonica, just in good blossom. Other col- 
lections from the same region (see citations under M. arizonica, var. 
umbratilis) indicate that it blooms a month or two later than M. 
praecox. Mr. F. J. Smiley, now of the University of California, 
studied this plant when he was an assistant at the Gray Herbarium 
and he left notes outlining the chief characters of the species, which 
I am here publishing with his kind ages 
M. taevicata Piper, Contrib. U.S. . Herb. xi. 477 
(1906). — Cascade and Olympia Mts., Washi sean n; probably ad- 
ome Oregon. — WasHINGTON: Mt. Ranier, July 20, 1 1892, aoe. 
- ae ; Goat Mts., July 22, 1896, Allen, no. 231; Simcoe Mts., 186 
ya 
10a. var. brachycalyx (Piper), comb. nov. M. brachycalyx 
Piper, Contrib. U.S. Nat. Herb. xi. 477 (1906). — WASHINGTON: 
Nason Creek, Chelan Co., Aug. 4, 1893, Sandberg & Leiberg, no. 
678. i IpaHo, ] according to Rydberg, Bull. Torr. Club xl. 481 
(191 
11. M. suppuBEscens Rydb. Bull. Torr. Club xxx. 261 (1903). — 
Southwestern Montana and northern Wyoming. — MonTANA: 
West Gallatin River, June 9, 1883, F. Lamson Scribner, no. 175; 
Bozeman, June 18, 1900, Blankinship. Wyomina: Ten Sleep 
