1024 LAMIACEAE 
lower lip 5 mm. broad, 4-lobed, notched, the upper lip much smaller than lower, the lateral 
lobes about as long as middle one: anthers barely ciliate: nutlets 1 mm. broad, granular. 
On prairies. Kansas to Texas. Spring. 
20. Scutellaria Hélleri Small. Perennial, villous-hirsute. Stem usually branched at 
the base, the branches 0.5-3 dm. tall, commonly branched above : leaf-blades ovate, some- 
times narrowly so, 1-2 cm. long, shallowly toothed or undulate, those of the lower leaves 
petioled : pedicel shorter than the calyx: calyx becoming 4-5 mm. long, finely hirsute : 
corolla minutely pubescent, about 1 em. long: nutlets over 1 mm. thick. 
On rocky or calcareous prairies, Texas and adjacent Mexico. Spring. 
21. Scutellaria resinósa Torr. Perennial, more or less cinereous-puberulent and 
resinous-dotted. Stems diffusely branched at the base, the branches erect or spreading, 1-3 
dm. long : leaf-blades ovate oval elliptic to oblong-spatulate, 1-1.5 em. long, obtuse, entire, 
gradually or abruptly narrowed at the base, the lower ones short-petioled, the upper sessile 
or nearly so: pedicel as long as the calyx or shorter: calyx 3-5 mm. long, merely resinous, 
_ the crest near the apex of upper lip: corolla blue or purplish, minutely pilose, 1 cm. long, 
the upper lip with lateral lobes as long as the middle one, the lower lip with a yellow or a 
white blotch in the center, the terminal one notched: anthers glabrous or nearly so: nut- 
lets less than 1 mm. broad, granular. 
On prairies or hillsides, Kansas to Texas. Spring. 
22. Scutellaria párvula Michx.  Perennial, glabrate or minutely pubescent, the 
rootstocks producing chains of small tubers. Stems erect, simple or diffusely branched, 
0.5-3 dm. tall: leaf-blades broadly ovate to lanceolate, 1-2 em. long, obtuse or acutish, or 
often prominently nerved beneath, commonly revolute, truncate or subcordate at the base, 
closely sessile: pedicel as long as the calyx, or shorter: calyx puberulent, 2-4 mm. long, 
the crest near the middle of the upper lip: corolla blue, 4-8 mm. long, minutely pilose, 
the lower lip suborbicular, about 3 mm. broad, emarginate, the upper lip shorter than the 
lower, 3-lobed : nutlets about 1 mm. in diameter, papillose. 
In dry sandy or clay soil, Quebec to Minnesota, Florida and Texas. Spring and summer. 
23. Scutellaria campéstris Britton. Perennial, densely soft-pubescent and some- 
what viscid. Stems simple and erect or diffusely branched, the branches ascending or 
spreading, 0.5-2 cm. long: leaf-blades ovate, suborbicular or reniform at the base of the 
stem or ovate-lanceolate at the top, obtuse, entire or shallowly toothed, prominently nerved 
beneath, the lower ones short-petioled, the upper sessile: pedicel as long as the calyx, or 
shorter: calyx 2-4 mm. long, minutely glandular-pilose, the crest about the middle : 
corolla blue, 6-7 mm. long, the lower lip 4-lobed, the upper lip 3-lobed, the lobes nearly 
equal : anthers nearly glabrous: nutlets 1 mm. in diameter, tuberculate. 
In sandy soil, North Carolina to Iowa and the Indian Territory. Spring and early summer. 
24. Scutellaria galericulàta L. Perennial, glabrate or finely pubescent. Stems 
erect or reclining, 2-9 dm. long, simple or much branched : leaf-blades membranous, ob- 
long or oblong-lanceolate, acute, shallowly serrate, truncate or cordate at the base, the 
lower ones short-petioled, the upper sessile: pedicel shorter than calyx : calyx 3.5-5 mm. 
long, minutely pubescent, the crest below the middle: corolla blue or white, 15-18 mm. 
long, the lower lip broadly reniform, undulate, the upper lip shorter than the lower, 3- 
lobed, the middle lobe notched : anthers short-ciliate : nutlets fully 2 mm. long, taberculate. 
In low grounds or swamps, Newfoundland to Alaska, New Jersey, North Carolina, Nebraska, Ari- 
zona and Washington. Also in Europe and Asia. Summer and fall. 
25. Scutellaria nervósa Pursh. Perennial, minutely pubescent. Stems erect, 14 
dm. tall, simple or sparingly branched : leaf-blades suborbicular to oval or lanceolate as 
undulate or coarsely serrate, rounded or cordate at the base, the lower ones short-petiole vi 
the upper sessile : flowers axillary to bracts somewhat narrower than the leaves: pedicels 
2-4 mm. long : calyx becoming 5 or 6 mm. long : corolla blue or purplish, 8-10 mm. long, 
minutely pubescent: nutlets raised on a slender gynobase, each with a membranous wing- 
In woods and thickets, New York to Missouri, and North Carolina. Spring and summer. 
6. MARRUBIUM L. 
Perennial caulescent herbs, with woolly foliage. Leaves opposite : blades npe 
often rugose. Flowers in dense axillary clusters. Calyx tubular: tube 5-10-ribbed : lobes 
10, equal or alternately long and short, slender, spreading or recurved at —— 
Corolla white or purplish, 2-lipped : upper lip erect, entire or notched : lower lip spread- 
ing with 2 small lateral lobes and a broad middle lobe. Stamens 4, included : peine 
slender, anterior pair longer: anthers 2-celled: sacs divergent. Nutlets smooth or granular. 
