LABIATAE ,(mINT FAMILY) 427 



late, sha?piy serrate: calyx villous with viscid hairs, the upper lobes acute; 

 corolla 7-12 mm. long, purple, rose, or cream-color. — ^Prom Colorado and Ne- 

 bsagka: southward to New Mexico,,-- ■ ■ ^ . ■,. 



2»)^ei}t:rium laciniatiun Torr. Ann. Lye. N. Y. 2: 231'. 18?8. , Glahrous or 

 hirsute'pubescent, much branched jftpni ^ woody perennial root: leaves pin- 

 nately(.3-7-parted into narrow, Imear, entire or ,2 or 3-lobecl or toothed divi- 

 sions, rather rigid; the floral much crowded, 3-parted; the upper equahng the 

 flowers: corolla p{ile bluCiOr lilac,!l2-20 mm. long, with spatulate lower lobe 

 much surpassing this calyx.— pFrom Wyoming to, Arizona and Tex3,3! 



2. SCUTELLARIA ii. Skullcap 



Bitter perennial herbs with blue or violet flowers in simple racemes or soli- 

 tary in the axils. Calyx cainpaiulate, 2-lipped, the lips' entire and closed in 

 fruit, the upper with a helmet-like appendage on the back (which' at length 

 becomes enlarged and concave). Qorolla 2-lipped, the tube curved and di- 

 lated at throat ; the upper lip arched, entire or nearly so; \he lower lip spreading 

 or deflexedj the 'middle lobe. broad, the lateral lobes small and somewhat 

 united' to the upf)er lip. Stamens didynamous, ascending under the upper 

 lip;< the upper pair the shorter; anthers ciliate, those of jthe upper pau: of 

 stataens 2^elled, of the lower 1-celled. Nutlets papillose or tuberculate. 



iiiixt u. , . . 11. . J .' ; ■ '" ' , 1 , 



Flowers m jacegie^ a^llary or terminal 1. S. lateriflora. 



Flowers soirtary' in the axil's. 

 ^.jPteI^tEClo^^ or less glandular. 



"Leaves longer tnan the internodes ; . , . '. i . 2. S. Brittonii. ■ ' 

 Leaves shorter than the interiiodes . ', ' . ■. ' . , 3. S.'virgulata. 

 ,, Plant ^not glandular, . ■-.- . . , ,4. S. galericulata. 



1. Scutellaria lateriflora L. Sp. PI. 598. 1753. Glabrous, 3-5 dm. high, 

 leafy: leaves thin, oblong-ovate and 'ovate-lamceolate, acuminate, coarsely 

 serrate, rounded at base, slender-petioled; the lower floral ones of the termi- 

 nal racemes similar: flowers small, about' 6 mm; long, mostly in lateral rar 

 cemes: lips of the cofblla short, equal. — Widely distributed, but rare in our 

 range. 



• 2.- Scutellaria Brittonii Portpr, Bull. Torr; Bot. Club!21:il77. 1894. Glan- 

 dular or Viscid-pubeScent, branching from the base,' 1-2 dm. high: leaves ob- 

 loA^ or oval, sessile and entire or the lowest short-petioled and slightly cren- 

 ulate; obtuse, rather prominently veined on the lower surface, 1-2 cm. long, 

 itfostfy longer than' the internodes: flowers solitary in the axilsl; the pedicels 

 mostly shorter than'the calyx: corolla pubescent, blue, 20-25 mm. long. Si 

 resinosa JolT. in part. — -Wyoming and Colorado and' probably western. Ne- 

 brasksl ^^'"^ ',*-■' ' .. ' ■ ^ ,-■ .. .,,i '-,ir ,i~i 



3. Scutellaria virgulata A. Nels. Bull. Torr. Bot. Club 25: 283. 1898. 

 Similar but merely puberulent,-taller; stems §lend^.,_ generally simple: leaves 

 nervo?e, green, obscurely puberulent; the lower much shorter than the inter- 

 nodes:' calyx green (eventhe crest): corolla bluff, gradually dilated upward, 

 gldbrciuS' ill the thtoat' and glaindular-puberulent outside: nutlets mmutely 

 tubet'Culate. — ^From Wyomihg to Colorado. i > 



4. Scutellaria galericulata L. Sp. PI. 599. 1753. Nearly glabrous or sUghtly 

 pnb^pent, slender, 3-7 dm. high, simple or paniculate,ly brapqhed above: 

 le9.vf(% ovate-lanceolate, brpadest ne?t the subsessile subcordate base, 3-5 cm. 

 long, a,EI, but the i upper appre3sed-serrate: corolla puberulent, 12-18 mm; 

 long; lojver hp nearly ereci and surpassing the upper. — Stream banks; across 

 the con^jn,ent.. ,, ;,. ' '' 



3. MENTHA Tourn. Mint 



Odorous heirbsi; with simple mostly punctate leaves and small flowers 

 usuaHy in close clusters fprmmg axillary caj)itate whprls or interrupted spikes. 

 Cmyx Smoothed, 'tubiflar otbeU-shaped. Corolla campanulate, with Subeqhal 

 lobes and included tul^e. Stamens 4, equal, | with glabrous filaments bearing 

 anthers with parallel cells. Nutlets ovoid and' smooth. ' 



