1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 195 
so closely with M. glabratus that even with the limited material at 
hand the writer has no hesitation in regarding it as a mere vari- 
ation of M. glabratus, separated mainly by the extent of the 
pubescence. Additional material may show the two to be con- 
specific. Lindley said that M. parviflorus differed from M. gla- 
bratus in not having square stems and in being hairy but this 
does not hold. The amount of hairiness is variable. Plants 
grown from seed of Jórgensen's collection no. 980 from Argentine 
Republie showed much diversity: some of the plants were gla- 
brous, some had distinctly pubescent petioles, pedicels, and 
calyces, and some were merely puberulent. In this section, 
annual or perennial characters seem to be largely dependent on 
the amount of water present and the conditions under which the 
individual plants are growing, so that these could not be used for 
specific diagnosis unless accompanied by other more important 
differences. 
SECTION 4. PARADANTHUS Grant | 
$4. PARADANTHUS Grant, new section. 
$ Eumimulus Gray, Syn. Fl. №. Am. 2. ed. 2, 2: Suppl. 446. 
, in part. 
§ Simiolus Greene in Bull. Calif. Acad. Sci. 1: 109. 1885, in 
part 
Annuals or perennials, glabrous, glandular, viscid-pubescent or 
slimy-villous; calyx campanulate, occasionally inflated in fruit, 
rarely with corky ribs, teeth equal or nearly so; corolla mostly 
funnelform, sometimes bilabiate, throat commonly ampliate, 
lobes equal or unequal, pink, reddish-purple, yellow, or blue, 
rarely white; stamens usually included; style glabrous or pu- 
bescent, stigma-lips equal or unequal; capsule dehiscent to the 
base along both sutures, placentae completely united, separated at 
е apex or occasionally divided to the middle and adherent to 
the valves, Sp. 26—69. 
KEY TO THE SPECIES 
В. Corolla more than 9 mm. long.......---m 81. M. latidens 
