556 SCROPHULARIACEAE 
8. COLLINSIA, Nutt. 
Slender branching herbs, with opposite leaves or leaves in whorls, and 
showy flowers in umbel-like clusters. Calyx 5-cleft. Corolla tipped to one 
side, the 2 lips divided nearly to the base, the upper lip 2-cleft, lower 
3-cleft, larger. Stamens 4, enclosed in the 3-parted lower lip. Capsule 
4- to many-seeded. 
C. verna, Nutt. (Fig. 4, pl. 141.) Innocence. Stem weak, 4 to 2 
ft. high. Leaves thin, opposite, rounded or egg-shaped, the upper clasping 
by the heart-shaped base, the lower on leaf-stalks, all coarsely toothed at 
margins. Flowers in a terminal umbel-like cluster of 4 to 6 flowers, the 
lower lip blue, the upper purple or nearly white. Moist woods, western 
part of our area. May-June. 
9. PAULOWNIA, Sieb. 
A large spreading tree, with broad opposite leaves and large purple 
flowers in terminal loose clusters. Calyx deeply 5-cleft. Corolla a long 
tube with an irregular 5-lobed border. Stamens 4, included in the tube. 
Style slender. Capsule woody, egg-shaped, many seeded. 
P. tomentosa, (Thunb.) Baill. (Fig. 7, pl. 141.) Pavunownta. A 
very large tree, branching freely. Leaves broadly egg-shaped, 6 to 15 in. 
long, on long leaf-stalks. Flowers deep purple about 23 in. long. In 
southern part of our area. Escaped from cultivation. May-July. 
10. MIMULUS, L. 
Herbs, with opposite leaves and handsome irregular flowers. Flowers 
from the axils, tube cylindric, the lips broad and reflexed or erect, rounded ; 
the throat closed. Stamens 4, inserted in the corolla. Style 2-parted at 
top. 
Flowers violet. : 
Leaves “without Jeaf-stalks” 5) (<)) -) )e e) e ie ol to Cree 
Leaves) swith! leat-stalks, 325i /s) sl i¥e) en Wes is) fol “lehav i) ol, vo) petal tomer 
Flowers yellow. 
Stem smooth. 
Leaves egg-shaped or pear-shaped . . . « « « »« « WM. guttatus 
Leaves round or broadly egg-shaped . . . . . . . M. Jamesti 
Stem hairy a0 ee al Be erst Bl GE US AL aa. Cee Voces 
1. M. ringens, L. (Fig. 1, pl. 142.) Square-stemMEep MonkKey- 
FLOWER. Stem 1 to 3 ft. high, smooth, 4-angled. Leaves oblong or lance- 
shaped, coarsely toothed, clasping the stem at base, tapering to the apex. 
Flowers, one in each of the upper leaf-axils, on flower stems longer than 
the flower. Color violet-blue, varying sometimes to bluish-white. Along 
the wet borders of streams, and in swamps. June-Sept. 
2. Mz. alatus, Ait. (Fig. 3, pl. 142.) Stuarp-wincep MONKEY-FLOWER. 
Plant about as large as No. 1, the stem very sharply 4-angled. Leaves 
oblong, egg-shaped, the upper tapering at each end, the lower somewhat 
rounded, on leaf-stalks. Corolla violet. Along borders of streams and in 
swamps. Connecticut and northward. June-Sept. 
3. M. guttatus, DC. (Fig. 2, pl. 142.) Yrttow Monkry-riower, 
(M. Langsdorbii, Don.) Leaves pear-shaped, the lower on leaf-stalks, 
coarsely toothed. Flowers yellow. In fields. Norfolk, Conn. June-Sept. 
