S. pirrum L. S. nelsoni Duval. 34. Sterculiaceae Waltheria americana L. A shrub with blunt, ovate, toothed and velvety lvs., 1-3.5 in. long. Flrs. small yellow, densely clustered at axils. 35. Surianaceae Suriana maritima L. - A shrub with clustered, narrow-spatula-shaped, velvety lvs. 0.5 to 2 in. long, small narrow flowers . 36. Tiliaceae Triumfetta procumbens - a shrubby, hairy annual herb with toothed lvs.; flrs. small, yellow, five-parted. 37. Urticaceae Shrubs; lvs. ovate, alternate Lvs. about 4 in. long, broad ovate, smooth or nearly so above, downy white below Pipturus velutinus Wedd. Herbs with more or less succulent lvs.; lvs. in two rows; lvs. opposite, about 0.25 in long, pairs unequal in size ...... Pilea microphylla (L.) Liebm. Fleurya ruderalis (Först.) Gaud. 38. Verbenaceae Herbs; flrs. with 5 toothed calyx and five lobed corolla. Flrs. with two fertile, two sterile stamens .... Stachytarpha S. indica (L.) Vehl. Blue flrs.; slender flr spikes, less than 0.12 in. S. cavannensis (L. Rich.) Vahl. in dis. Blue flrs.; broad flr. spikes, more than 0.12 in. S. jamaicensis (L.) Vahl. in dis. Shrubs Lvs. compound, 3-7 leaflets Vitex Leaflets 3 Vitex trifolia L. Leaflets 7 Vitex negundo Lam.