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VERBENACEAE. 
Family 117. VERBENACEAE St. Hil. Vervain Family. 
Flowers in terminal spikes; corolla-limb 5-lobed; nutlets 4. 1. Verbena. 
Flowers in axillary peduncled short spikes; corolla-limb 4-lobed; nutlets 2. 
2. Phyla. 
1. VERBENA L. Vervain. 
Anthers not appendaged; flowers in elongated spikes, less than 8 mm long. 
Plant tall, erect, strict; leaves not pinnatifid, only sometimes lobed at the base 
in the first species. 
Bracts shorter than the calyx. 1. V. hastata. 
Bracts one-third longer than the calyx; pubescence dense, soft. 
2. V. MacDougalii. 
Plant low, diffuse; leaves more or less pinnatifid; bracts much longer than 
the calyx. 3* V. bracteosa. 
Anthers of the longer stamens appendaged by a gland on the connective; corolla 
8 mm. long or more. 3. V. ciliata. 
Calyx-lobes subulate. 5. V. ambrosifolia. 
Calyx-lobes setaceous. 
1. Verbena hastata L. In river valleys and moist meadows from N. S. 
and B. C. to Fla. and Calif.—Alt. 4000-7000 ft.—Timnath, Larimer Co.; 
foot-hills near Golden; Ft. Collins; Mason’s river-front farm, Larimer Co.; 
Boulder. 
2. Verbena MacDougalii Heller. In river valleys from Colo, to N. M. and 
Ariz.—Alt. about 7000 ft.—La Veta; Cucharas Valley, near La Veta; Ar- 
boles; Palmer Lake. 
3. Verbena bracteosa Michx. (V. rudis Greene) On prairies and plains 
and in waste places from Ill., Alb. and B. C. to Fla. and Calif.—Alt. 4000- 
7500 ft.—Colorado Springs; Manitou; Arboles; Walsenburg; Platte River; 
Ft. Collins; Deer River; Cimarron; Rist Canon; Dixon Canon; Boulder. 
4. Verbena ciliata Benth. On plains from Colo, to Tex. and Ariz.; also 
Mex.—Alt. 4000-5500 ft.—Mesas near Pueblo; Durango; Trinidad. 
5. Verbena ambrosifolia Rydb. On plains from S. D. and Colo, to Tex. 
and Ariz.; also Mex.—Alt. 4000-6000 ft.—Boulder; Walsenburg; Rocky Ford, 
Otero Co.; foot-hills, Larimer Co.; Boulder Co.; La Porte; Soldier Canon; 
Florence; Quimby. 
2. PHYLA Lour. 
1. Phyla cuneifolia (Torr.) Greene. ( Lippia cuneifolia Torr.) On plains 
from S. D. and Wyo., to Tex and Ariz.—Alt. 4000-6000 ft.—Greeley, Weld 
Co.; Ft. Collins; foot-hills, Larimer Co.; Boulder Canon; banks of Arkansas 
at Pueblo; Rocky Ford; Boulder. 
Family 118. LAMIACEAE Lindl. Mint Family. 
Ovary of 4 united carpels; style not basal; nutlets laterally attached. 
Flowers in small congested cymes, axillary to small bracts, and forming a 
raceme-like panicle; calyx-lobes shorter than the tube; leaves toothed. 
1. Teuchrium. 
Flowers solitary in the axils of bracts similar to the leaves; calyx-lobes longer 
than the tube; leaves laciniate. 2. Melosmon. 
Ovary of 4 distinct or nearly distinct carpels; styles basal ; nutlets basally attached. 
Corolla bilabiate. 
