Flora of the Paloasc Region 149 



bud: anthers ovate or oblong: nutlets small, ovoid, smooth and 

 shining, thin-erustaeeous; scar small. 



M. vema Nutt. Annual, erect, rough-hair}- throughout, 10-40 cm. tall, 

 branched above or simple: leaves oblong-linear or oblanceolate, obtuse, 

 sessile, 1-2 cm. long: racemes elongated and loose in fruit, leafy at the base: 

 pedicels shorter than the calyx: fruiting calyx 4-5 mm. long, deeply 5-cleft, 

 the lobes lanceolate, unequal, hispid with hooked hairs: corolla small, white: 

 nutlets oval, biconvex with a narrow margin, very smooth and shiny, 1.5 

 mm. long; scar minute. Moist ground, rather rare. 



247. LITHOSPERMUM. 



Mostly herbs, with reddish roots: leaves sessile: flowers leafy- 

 braeted, axillary or subaxillary: calyx 5-parted: corolla salver- 

 form, funuelform, or sometimes approaching campanulate, either 

 naked or with pubescent lines or intruded gibbous projections or 

 low transverse crests at the throat: filaments mostly very short; 

 anthers short, included: style slender; stigma mostly truncate, cap- 

 itate or 2-lobed: nutlets ovoid, bony, either polished and white or 

 dull and rough. 



L. pilosum Nutt. Perennial, tufted, the stems simple, 15-30 cm. high, 

 pubescent with long and short hairs: leaves numerous, lanceolate, rarely 

 linear, attenuate-acute, sessile, 5-10 cm. long, minutely soft-hispid: flowers 

 in a dense leafy cluster: corolla greenish-yellow, campanulate-funnelform, 

 pubescent inside, nearly naked in the throat, 10-12 mm. long: style slender: 

 nutlets light-colored, ovate, acute, hard and smooth, 3-4 mm. long. Com- 

 mon on hillsides. 



Family 66. VERBENACEAE. 



Herbs or shrubs, not aromatic: leaves opposite or whorled, rare- 

 ly alternate: flowers perfect, regular or irregular: corolla either 2- 

 lipped or irregular: stamens 4, didynamous: style single, terminal; 

 stigma entire or 2-lobed: ovary not lobed: fruit 2-4-celled, dry or 

 drupaceous, usually splitting when ripe into as main' 1 -seeded in- 

 dehiscent nutlets; endosperm scant or none. 



248. VERBENA. 



Herbs: flowers sessile, in single or panicled spikes, bracted: cal- 

 yx tubular, 5-toothed, one tooth often shorter: corolla salverform, 

 more or less unequally 5-cleft: stamens included, the upper pair 

 occasionally without anthers: style slender; stigma mostly 2-lobed: 

 fruit splitting into 4 seed-like nutlets. 



Spikes narrow, dense: bracts short. V. HAST AT A. 



Spikes loose: bracts exceeding the flowers. V. BRACTEOSA. 



V. hastata L. Perennial, erect, 30-90 cm. high, simple below the inflo- 

 rescence, rough-puberulent throughout: steins 4-sided: leaves oblong or 



