[Vor. 11 
126 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
B. Calyx-teeth unequal, the posterior tooth larger than the others. 
а. Lower teeth of mature capsule folding over the lateral and upper 
tooth; corolla yellow............ $ 4. Simiolus 
b. Lower teeth of mature capsule not folding the lateral and upper 
tooth; corolla red........... : $ 2. Erythranthe 
Subgenus II. ScnmizoPLAcus Grant. Placentae mostly separ- 
ating to the base and adherent to the valves; pedicels usually 
shorter than the calyx; style glandular-pubescent; capsule 
mostly dehiscent to the base along the inner suture and part 
way or not at all along the outer. | 
A. Herbaceous plants. 
а. Capsule membranaceous, not gibbous nor oblique at the base. 
a. Corolla tubular-funnelform to nearly campanulate; style glandu- 
$5.E 
lar-pubescent along the upper half. ....... $ unanus 
B. Corolla salverform, lobes rotate; style pubescent along its entire 
МЕСЕ 55 ыы XI Pra е $ 6. Mimulastrum 
b. Capsule eartilaginous, gibbous or oblique at the base. 
а. Corolla-tube much exserted, lobes erect or spreading....... $ 7. CEnoe 
8. Corolla-tube included, lobes rotately spreading........ $ 8. Pseudoenoe 
B. Shrubs or suffrutescent plants. 
a. Mature calyx twisted over the capsule, teeth equal...... $ 9. Tropanthus 
b. Mature calyx not twisted, teeth unequal................ § 10. Diplacus 
SuBGENUS I. SxvNPLAcus Grant 
Subgenus I. SvNPLAcUs Grant, new subgenus. 
Perennial or annual herbs, slimy-viscid, glandular-pubescent or 
glabrous; pedicels mostly longer than the calyx; corolla bilabiate 
or with equal or subequal lobes; stamens included or exserted, 
glabrous or pubescent; style glabrous or occasionally puberulent 
or glandular; stigma bilamellate, usually with equal lips; capsule 
membranaceous, shorter than the persistent calyx, mostly 
dehiscent to the base along both sutures; placentae completely 
united in a central column or separating at the apex, rarely 
divided to the middle. Sect. 1-4. 
SECTION 1. EuwiMULUS Gray 
$1. Есмімгілв Gray in Proc. Am. Acad. 11: 97. 1876, аз to 
M. ringens and M. alatus; Syn. Fl. №. Am. 2: 276. 1878, ed. 2, 
and Suppl 446. 1886, as to M. ringens and M. alatus only; 
Greene in Bull. Calif. Acad. Sci. 1: 107. 1885; Wettst. in 
& Prantl, Nat. Pflanzenfam. 4%: 72. 1801, as to M. ringens 
M. alatus; Dalla Torre & Harms, Gen. Siph. 457. 1900-1907. 
