GENUS 3. 



VERVAIN FAMILY. 



99 



3. CALLICARPA L. Sp. PI. in. 1753- 



Shrubs or trees, with opposite leaves, and small blue purple or white flowers in axillary 

 cymes. Calyx short, campanulate, 4-toothed (rarely 5-toothed), or truncate. Corolla-tube 

 short, expanded above, the limb spreading, 4-cleft (rarely 5-deft), the lobes equal, imbri- 

 cated in the bud. Stamens 4, equal, exserted; anthers ovate or oval, their sacs parallel. 

 Ovary incompletely 2-celled ; ovules 2 in each cavity, laterally attached, amphitropous ; style 

 slender; stigma capitate, or 2-lobed. Fruit a berry-like drupe, much longer than the calyx, 

 containing 1-4 nutlets. [Greek, handsome fruit.] 



About 45 species, the following typical one of southeastern North America, the others Asiatic, 

 African and tropical American. 



i. Callicarpa americana L. French or 

 Bermuda Mulberry.. Fig. 3563. 



Callicarpa americana L. Sp. PI. in. 1753. 



A shrub, 2-5 high, the twigs, petioles and 

 young leaves stellate-scurfy, the mature leaves 

 becoming nearly glabrous and glandular-dotted. 

 Twigs terete ; leaves thin, ovate, pinnately veined, 

 slender-petioled, acute or acuminate at the apex, 

 crenate-dentate nearly to the entire base, 3'-6' 

 long, ii'-3' wide; cymes many-flowered, short- 

 peduncled ; pedicels very short ; calyx-teeth much 

 shorter than the tube ; corolla pale blue, about 

 ii" long; fruit violet-blue, globose, li" in diam- 

 eter, very conspicuous in autumn. 



In moist thickets, Virginia to Florida, Missouri, 

 Arkansas and Texas. Bermuda. June-July. Sour- 

 bush. 



Callicarpa purpurea Juss., an Asiatic shrub often 

 planted for ornament, with pink flowers and long 

 leaves, has been observed in a swamp at Wilmington. 

 Delaware. 



Family 26. LABI AT AE B. Juss. Hort. Trian. 1759. 



MINT FAMILY. 



Aromatic punctate herbs, or shrubs (a few tropical species trees), mostly with 

 4-sided stems and simple opposite leaves ; stipules none. Flowers irregular, perfect, 

 variously clustered, the inflorescence typically cymose, usually bracteolate. Calyx 

 inferior, persistent, regular or 2-lipped, 5-toothed or 5-lobed (rarely 4-toothed), 

 mostly nerved. Corolla with a short or long tube, the limb 4-5-lobed, mostly 

 2-lipped, regular in a few genera; upper lip 2-lobed, or sometimes entire; lower 

 lip mostly 3-lobed. Stamens borne on the corolla-tube, typically 4 and didy- 

 namous, sometimes 2 with or without staminodia, rarely equal ; filaments separate, 

 mostly slender, alternate with the corolla-lobes ; anthers 2-celled, introrse, or con- 

 fluently i-celled, or sometimes of a single sac. Disk usually present, fleshy. 

 Ovary 4-lobed or 4-parted, superior, each lobe or division with i mostly anatropous 

 ovule; style arising from the center of the lobed or parted ovary, 2-lobed at the 

 summit. Fruit of 4 i-seeded nutlets. Seed erect (transverse in Scutellaria} ; 

 endosperm scanty, or usually none ; embryo mostly straight ; radicle short, inferior. 



About 1 60 genera and 3200 species, of wide distribution in temperate and tropical regions. The 

 family is also known as LAMIACEAE. The foliage abounds in volatile oils. 



A. Ovary 4-lobed, the style not basal; nutlets laterally attached. (AJUGEAE.) 

 Corolla-limb very irregular, apparently i-lipped, or the other lip very short; stamens exserted. 



Upper lip of corolla short, truncate. 



Upper lip of corolla 2-lobed, or all the lobes united into the lower lip. 

 Corolla-limb nearly equally 5-lobed. 



Corolla-lobes spreading ; stamens short-exserted. 

 Corolla-lobes declined ; stamens long-exserted. 



B. Ovary 4-parted, the style basal; nutlets basally attached. 



* Calyx with a protuberance on the upper side. (SCUTELLARIEAE.) 5. Scutellaria. 



** Calyx not gibbous on the upper side. (STACHYEAE.) 

 Stamens and style very short, included in the corolla-tube. 



Anther-sacs parellel. 6. Marrubium. 



Anther-sacs, at least of the upper stamens, divergent. 7. Sideritis. 



Stamens longer, not included in the corolla-tube. 



Ajuga. 

 Teucrium. 



Isanthus. 

 Trichostema. 



