PIPER FLORA OF THE STATE OF WASHINGTON. 4S7 



Upper pair of stamens longer tlian the lower. 



Anther cells parallel Agastacitf, (p. 4,S9) 



Anther cells divergent. 



Calyx teeth subequal NEPF/rA (p. 489). 



Calyx teeth unequal, the upper very 



large Dra( ocei'haluiM (p. 4S9). 



Upper pair of stamens shorter than the lower. 



Calyx bilabiate Prunella (p. 4S9). 



Calyx not bilabiate. 



Teeth of the calyx 10, spiny Marrubiiim (p. 4S9). 



Teeth of the calyx 5, not spiny. 



Flowers opposite; calyx becom- 

 ing inflated. PiivsosTEfiiA (p. 490). 



Flowers whorled ; calyx not be- 

 coming inflated. 



Throat of corolla dilated . Labium (p. 490). 

 Throat of corolla not dil- 

 ated Staciiys (p. 490). 



Corolla nearly regular, or wnen bilabiate, the uppei' lip plane. 

 Corolla regular or nearly so. 



Antheriferous stamens 2 Lycopus (j). 491). 



Antlieriferous stamens 4 Mentha (p. 492). 



Corolla bilabiate. 



Plant creeping; flowers axillary Micromeria (p. 493). 



Plant erect; flowers capitate-vert iciilatc Mauronella (p. 493.) 



TRICHOSTEMA. 



Corolla tube not exceeding the c'ulyx; leaves nienibranaceous, costate- 



veined 1. T. obloncjum. 



Corolla tube slender, exserted; leaves crowded, stiongly 3 tij 5-nervose. 2. T. lanceolaturn. 



1. Trichostema oblongum Benth. Lai). 659. 1832-3(5. 



Type locality: "In herbidis prope arceni Vancouver." Collected by Douglas. 

 Range: Washington and Idaho to California. 



Specimens examined: Falcon Valley, Suksdorf 'M; without locality, I>i)ii</las; Pullman 

 Piper 1874; Hull, July 16, 1892. 



Zonal distribution: Arid Transition. 



2. Trichostema lanceolatum Benth. Lab. 659. 1835-36. 



Type locality: " Propc arcem Vancouver in siccis ad flumen AIul( uouiali ct in Nova Cali- 

 fornia." Collected by Douglas. 



Range: California, Oregon, Washington? 



It is very doubtful if this plant occurs north of the Columbia River. The above state- 

 ment of Douglas in Hooker's Flora is the only direct evidence. 



TETJCRIUM. 



1. Teucriuni occidentale A. Gray, Syn. Fl. 2': 349. 1878. 

 Type locality: JSebra.ska. Collected by Hayden. 

 Range: Washington to California, New Mexico, and Nebraska. 

 Specimens examined: Coulee City, Henderson 25.33; Topp(>nisli, arifjillh-i cf' f'i>tloti 769. 



la. Teucriuni occidentale viscidum subsp. nov. 



DiU'crs fi-om T. occidentale in being viscid-puiiescent throughout. 



Collected at Mission, Stevens County, in nuick land, August 22, 1902, by Frank O. Ki'ea- 

 ger (no. 482). The type is the sheet in the U. S. National Herbarium no. 441297. 



