KEY TO CULTIVATED HERBS AND POTTED SHRUBS 



250 a Petioles of leaves winged ; ray flowers purple or crimson 



Brauneria. p 234. 

 b Petioles of leaves not winged ; ray flowers yellow 



Helianthus. p 235 



251 a Leaves lanceolate to oblong; heads about V in. broad 



Piqueria. p 227 

 b Leaves ovate or heart-shaped ; heads about % in.* broad 



Ageratum. p 227 



252 a Flowers more or less irregular 253 



b Flowers regular 263 



253 a Flowers with bright red calyx somewhat spurred at 



the base; corolla wanting Parsonsia ignea. p 189 



b Flowers not completely as in a 254 



254 a Flowers with both lips more or less inflated ; plant 



cultivated in pots and gardens Calceolaria, p 212 



b Flowers not completely as in a 255 



255 a Calyx teeth with hooked bristles Marrubium. p 206 



b Calyx teeth not with hooked bristles 256 



256 a Anther-bearing stamens 2 257 



b Anther-bearing stamens 4-5 258 



257 a Flowers Vi in. or less long Veronica p 211 



b Flowers %-2 in. long Salvia. p 206 



258 a Plant covered with glandular hairs; leaves 3-12 in. 



broad, heart-shaped, entire Martynia. p 2/2 



b Plants not completely as in a 259 



259 a Plant MJ-I in. high, much branched; flowers ^>-i in. 



long, yellow and blue Torenia. p 212 



b Plants and flowers not completely as in a 260 



260 a Flowers about % in. long, nearly white, in axillary 



clusters Melissa, p 207 



b Flowers i in. or more long 261 



261 a Flowers in terminal spikes 2-8 in. \ong:Physostegia. p 206 

 b Flowers not in terminal spikes 262 



263 a Flowers scarlet, in panicles Pentstemon barbatus. p 210 



b Flowers yellow or spotted, solitary in the axils 



Mimulus luteus. p 210 



263 a Flowers very small, numerous in globose heads about 



i in. in diameter Gomphrena. p 14.8 



b Flowers not completely as in a 264 



264 a Colored parts of the perianth or corolla more or less 



tubular 265 



b Perianth or corolla not tubular, the parts distinct .... 271 



265 a Leaves fleshy; corolla with 4 spreading lobes; stamens 8 



Bryophyllum. p 161 

 b Plants not completely as in a 266 



266 a Leaves with toothed margins 267 



b Leaves with entire margins 268 



96 



