346 ORDER LXVI. RUBIACE^E. 



segments. Anthers sagittate. Capsule angled ; receptacle globose. — 

 White. ^ . July. In wet places. Common. 6 — 15 feet. 



Button-noood. 

 Genus VI— MITCHEL'LA. L. 4—1. 

 (In honor of John Mitchell, of Virginia.) 



Calyx 4-toothed. Corolla superior, in pairs upon the same 

 germ. Stamens 4. Style 1. Fruit didyraous, 4-seeded. 



1. M. re'pens, (L.) Stem creeping, branching, glabrous, rooting at 

 the joints. Leaves ovate, or nearly cordate, entire, glabrous, deep green, 

 •with whitish reins, evergreen. Flowers axillary, solitary, on short pe- 

 duncles. Corolla hairy on the inside, fragrant. Fruit red, eatable. — 

 White. 2f . Early spring. Rich soils. Partridge Berry. 



Genus VII.— HEDI'OTIS. L. 4—1. 

 (From hedus, sweet, and ous, an ear, alluding to the sweet-scented, ear-like leaves.) 



Calyx 4-parted, persistent. Corolla funnel-form ; limb 4- 

 ■>left. Stamens 4. Stigmas 2. Capsule 2-celled, many-seed- 

 ed, inferior. 



1. H. cxeru'lea, (Hook.) (Houstonia ccerulea, L.) Stem erect, slen- 

 der, square, sparingly branched. Leaves of the root spatulate, those 

 of the stem lanceolate. Flowers on axillary, long peduncles, eaeh one- 

 flowered. — White. If. May — Aug. Common in mid. Car. and Geo. 

 4 — 6 inches. 



2. H. serpyllifo'lia, (T. & G.) (Houstonia serpyllifolia, Mich.) 

 Stem procumbent, cespitose, filiform. Leaves spatulate, obtuse. Flow- 

 ers on terminal peduncles, each 1 -flowered. 



3. H. rotundifo'lia, (T. & G.) (Houstonia rotundifolia, Mich.) 

 Stem prostrate, rooting at the joints, glabrous. Leaves ovate, narrowed 

 at the base, slightly ciliate. Flowers on axillary peduncles, each 1- 

 flowered. Corolla salver-form, pubescent within ; tube long ; segments 

 lanceolate. Capsule emarginate. — White. If. Through the summer. 

 On the sea-coast. 



4. II. purpc'rea, (T. & G.) (Houstonia purpurea, L.) Stem erect, 

 much branched, glabrous, hairy at the joints, and with the angles ciliate. 

 Leaves sessile, ovate-lanceolate, obtuse at the base ; nerves pubescent. 

 Flowers in terminal corymbs. Calyx pubescent, with ciliate segments. 

 — Purple. 2f . June — Aug. Abundant on the Ocmulgee, near Ma- 

 con. 10 — 15 inches. 



5. II. longifo'lta, (Hook.) (Houstonia longifolia, Grert.) Stem 

 erect, square, branching, glabrous. Leaves sessile, lanceolate, attenuate. 

 Flowers in corymbs, on very short peduncles. — Purple. 2f . June — 

 Aug. Mid. and upper (list. 8 — 16 inches. 



6. H. stenophyl'la, (T. <fc G.) Stem glabrous, suffructicose, erect, 

 branched. Leaves narrow, linear, often smaller ones in the axils. Flow- 

 ers numerous, in many-divided cymules, central flower nearty sessile, 

 throat of the corolla villous. Capsule small. — Pale purple. ©. Com- 

 mon on banks of streams. June — July. 10 — 18 inches. 



7. H. Bos'cn, (D. C.) Stem much branched, glabrous, branches slen- 

 der. Leaves linear, acute. Flowers on short pedicels, corolla nearly 



