ORDER LXVI. RUBIACE<E. 347 



rotate. Fruit roundish. — Purple. 0. Marshy places. July — Sept 

 6 — 10 inches. 



8. H. glomera'ta, (Ell.) Stem procumbent, assurgent, pubescent, 

 branched. Leaves opposite, lanceolate, cuneate, sessile, entire, connect- 

 ed by stipules, with 2 or more subulate teeth. Flowers in clusters, 

 whorled, axillary and terminal. Calyx persistent, hispid, with 1 — 3 

 bracts at the base. Corolla with a very short tube. Stamens short, 

 inserted into the tube of the corolla. Capsule globose. Seeds 3-angled, 

 attached to a central placenta9.^-White. If. June — Oct. Damp soils. 

 Common. 10 — 18 inches. 



Genus VIII.— PINCKNE'YA. Mich. 5—1. 

 (In honor of Mr. Pinckney.) 



Calyx superior, 5-parted, persistent, somewhat colored. Co- 

 rolla with a 5-cleft border. Stamens 5. Style 1. Capsule 

 2-celled. 



1. P. pu'bens, (Mich.) A large shrub, with numerous stems from each 

 root ; young branches tomentose. Leaves opposite, lanceolate, entire, 

 shining on the upper surface, with a few hairs, tomentose on the lower; 

 petiole tomentose. Flowers in axillary and terminal panicles ; segments 

 of the calyx sometimes equal, at others one or two of them resembling 

 bracts. Corolla tomentose, with a somewhat greenish tube ; segments 

 oval. Capsule nearly globose. Seeds flat. — Purple. ^ . May — June. 

 Wet soils. 15—20 feet. 



Sub-order III.— LOGANIA'CEJE. 

 Leaves opposite. Ovary superior. Herbs or shrubs. 



Genus IX.— MITRE'OLA. L. 5—1. {Ophiorhiza, L.) 



Calyx tubular, 5-cleft. Corolla funnel-shaped. Stamens 5. 

 Stigmas 2. Fruit 2-lobed. 



1. M. petiola'ta, (T. & G.) Stem erect, somewhat branched, nearly 

 square, scabrous toward the summit. Leaves ovate, opposite, appressed. 

 Flowers in secund spikes, erect at first, afterward recurved; throat of 

 the corolla closed by jointed hairs, segments expanding, tube short. 

 Fruit consisting of 2 carpels united at the base and apex Seeds nu- 

 merous. [Sent to me by Wm. S. Rockwell, Esq., of Baldwin county.] 

 — White. ©. July — Aug. Wet places. 12 — 18 inches. 



2. M. sessilifo'lia, (T. & G.) Stem erect, 4-angled, 4-furrowed, gla- 

 brous. Leaves lanceolate, attenuate at the base, scabrous on the upper 

 surface. Tube of the corolla as long as the calyx, purple, segments white. 

 — Purple and white. 0. Aug. — Sept. Wet soils. Common. 12 — 18 in. 



Genus X.— POLYPRE'MUM. Tourn. 



(From polus, many, and premno7i, a stalk.) 



Calyx 4-parted, persistent. Corolla rotate, 4-cleft, with the 

 throat hairy. Stamens 4, very short. Style 1, slender. Cap 

 tuln compressed, 2-celled. 



