PIPER—-FLORA OF THE STATE OF WASHINGTON. 487 
Upper pair of stamens longer than the lower. 
Anther cells parallel ..........------- AGASTACHE (p. 489) 
Anther cells divergent. 
Calyx teeth subequal ..........--- NEPETA (p. 489). 
Calyx teeth unequal, the upper very 
large. . 22-2 -2-2--------------- DracocePHALUM (p. 489). 
Upper pair of stamens shorter than the lower. 
Calyx bilabiate ...........-.-.------- PRUNELLA (p. 489). 
Calyx not bilabiate. 
Teeth of the calyx 10, spiny ...--- MARRUBIUM (p. 489). 
Teeth of the calyx 5, not spiny. 
Flowers opposite ; calyx becom- 
ing inflated..... 2.2.2.2... - PuysosTEGia (p. 490). 
Flowers whorled; calyx not be- 
coming inflated. 
Throat of corolla dilated . Lamrum (p. 490). 
Throat of corolla not dil- 
ated ....2...2.222.--- Sracuys (p. 490). 
Corolla nearly reguiar, or wnen bilabiate, the upper lip plane. 
Corolla regular or nearly so. 
Antheriferous stamens 2 ...........-.--------- Lycorus (p. 491). 
Antheriferous stamens 4_............--------- MENTHA (p. 492). 
Corolla bilabiate. 
° Plant creeping; flowers axillary .........-.-.--- MIcCROMERIA (p. 493). 
Plant erect; flowers capitate-verticillate ... 2... - MADRONELLA (p. 493.) 
TRICHOSTEMA. 
Corolla tube not exceeding the calyx; leaves membranaceous, costate- 
veined _.........---- eee reer reer errr etre rere 1. T. oblongum. 
Corolla tube slender, exserted; leaves crowded, strongly 3 to 5-nervose. 2. 7. lanceolatum. 
1. Trichostema oblongum Benth. Lab. 659. 1832-36. 
Type Locauity: ‘In herbidis prope arcem Vancouver.”’ Collected by Douglas. 
Rance; Washington and Idaho to California. 
SPECIMENS EXAMINED: Falcon Valley, Suksdorf 34; without locality, Douglas; Pullman 
Piper 1874; Hull, July 16, 1892. 
ZONAL DISTRIBUTION: Arid Transition. 
2. Trichostema lanceolatum Benth. Lab. 659. 1835-36. 
Type Locaity: “ Prope arcem Vancouver in siccis ad flumen Multnomah et 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. 
TEUCRIUM. 
1. Teucrium occidentale A. Gray, Syn. FI. 21: 349. 1878. 
Tyre Loca.ity: Nebraska. Collected by Hayden. 
Rance: Washington to California, New Mexico, and Nebraska. 
SPECIMENS EXAMINED: Coulee City, Henderson 2533; Toppenish, Griffiths d& Cotton 769. 
la. Teucrivm occidentale viscidum subsp. nov. 
Differs from 7’. occidentale in being viscid-pubescent throughout. 
Collected at Mission, Stevens County, in muck land, August 22, 1902, by Frank O. Krea- 
ger (no. 482). The type is the sheet in the U.S. National Herbarium no. 441297. 
