172 KUBIACE^E. (madder FAMILY.) 



1. D. Tirginica, L. Either smooth or hairy; stems spreading (I'-a" 

 long) ; leaves lanceolate or oblong-lanceolate, sessile ; flowers 1 - 3 in each axil ; 

 corolla white (^' long), the slender tube abruptly expanded into the large limb; style 

 2-parted; fruit oblong, strongly furrowed, crovraed mostly with 2 slender calyx- 

 teeth. IJ. — Kivcr-banks, Virginia and southward. May- Oct. 



2. 1>. teres, Walt. Hairy or minutely pubescent ; stem spreading (3' - 9' 

 long), nearly terete ; leaves linear-lanceolate, closely sessile, rigid ; flowers 1-3 

 in each axil; corolla funnel form (2" -3" long, whitish), with short lobes, not 

 exceeding the long bristles of the stipules ; style undivided; fruit obovate-turbi- 

 nate, not furrowed, crowned with 4 short calyx-teeth. ® — Sandy fields, from 

 New Jersey and Illinois southward. Aug. 



4. CEPHAlri-NTHUS, L. Button-bdsh. 



Calyx-tube inversely pyramidal, the limb 4-toothed. Corolla tubular, 4- 

 toothed ; the teeth imbricated in the bud. Style thrcad-foi-m, much protruded. 

 Stigma capitate. Fruit dry and hai'd, small, inversely pyramidal, 2 - 4-ceUed, 

 separating from tlie base upward into 2-4 closed 1-seeded portions. — Shrabs, 

 with the flowers densely aggregated in spherical peduncled heads. JTlowers 

 white. (Name composed of Kf(j>dKri, a head, and av6os, u, flower.) 



1. C. occidcntalJs, L. Smooth or pubescent; leaves petioled, ovate- 

 oblong, pointed, opposite or whorled in tlu-ees, with short intervening stipules. 

 — Wet places ; common. July -Aug. 



5. MSTCIIEl,L.j*, L. Paetuidge-bekey. 



Flowers in pairs, with their ovaries united. Calyx 4-toothed. Corolla fun- 

 nel-fonn, 4-lobed ; the lobes spreading, densely bearded inside, valvate in the 

 bud. Stamens 4. Style 1 : stigmas 4. Fruit a beny-like double drupe, 

 crowned with the calyx-teetli of the two flowers, each containing 4 small and 

 seed-like bony nutlets. — A smooth and trailing small evergreen herb, with 

 round-ovate and shining petioled leaves, minute stipules, white fragrant flowers 

 often tinged with pui-ple, and scarlet edible (but nearly tasteless) dry benies, 

 wliich remain over winter. Parts of the flower occasionally in threes, fives, or 

 sixes. (This very pretty plant commemorates Dr. John Mitchell, an early cor- 

 respondent of LinuiEus, and an excellent botanist, who resided in Virginia.) 



1 . M. repcns, L. — Dry woods, creeping about the foot of trees : com- 

 mon. June, July. — Leaves often variegated with wliitish lines. 



6. 01LI>E]\L,1nDIA, Plum., L. Bluets. 



Calyx 4- (rarely 5-) lobed, persistent. Corolla funnol-form, salver-form, or 

 nearly wheel-shaped; the limb 4- (rarely 5-) parted, imbricated in the bud. 

 Stamens 4 (rarely 5). Style 1 or none: stigmas 2. Pod globular, ovoid, or 

 obcordate, above often free and rising above the calyx, 2-eellcd, many-seeded, 

 opening loculicidally across the summit. Seeds concave on the inner face. — 

 Low herbs, with small stipules united to the petioles. Flowers white, purple, or 

 blue. (Dedicated, in 1703, to the memory of Oldenland, a Gennan pliysician 



