180 KUMACKifc. (maddkh family.) 



Stamens 5) exserted. Style filiform, thickened above. Stigma obtuse or 2-lobeil 

 Capsule coriaceous, ovoid, 2-celled, opening loculicidally at the apex, and septi- 

 cidally nearly to the base, many-seeded. Seeds circular, imbricated, winged. 

 — Trees or shrubs. Leaves opposite. Stipules solitary. Flowers white or 

 reddish. 



1. E. Caribseum, K. & S. Smooth; branches slender; leaves ovate- 

 lanceolate, acuminate ; peduncles axillary, solitary, L -flowered ; corolla as long as 

 the leaves.— South Florida. — Shrub G° - 12° high. Corolla 2' long, fragrant. 



18. OLDENLANDIA, Plum. Bluets. 



blowers tetramerous (except No. 8). Calyx 4-toothcd, persistent. Corolla 

 funnel-shaped, salver-shaped, or wheel-shaped, 4-lobed, valvate in the bud. 

 Stamens 4. Stigma mostly 2-lobcd. Capsule roundish or obcordate, 2-celled, 

 opening loculicidally at the apex, which is often free from the calyx. Seeds few 

 or many, wingless. — Chiefly small herbs, with opposite leaves. Stipules united 

 with the petioles, sometimes fringed with bristles. Flowers small, white or pur- 

 plish. 



* Corolla salver-shaped, longer than the calyx, smooth : flowers dimorphous, — some of 



them bearing exserted stamens and an included style, while others bear included 

 stamens and an exserted style : peduncles axillary, solitary : capsule broail, free 

 at the apex. 

 1- O. COerulea, Gray. Annual or biennial, smooth; stems tufted, fork- 

 ing; leaves lanceolate, those at the base spatulate, clustered; peduncles elon- 

 gated, erect or spreading. (Houstonia co-rulca, L. 11. patens, Ell.) — Moist 

 banks, Florida to Mississippi, and northward. February and March. — Stems 

 3' -6' high. Corolla blue or white, yellow in the throat. 



2. O. serpyllifolia, Gray. Perennial, smooth ; Btems filiform, prostrate, 

 branching; leaves ovate or roundish, abruptly contracted into a long and slen- 

 der petiole; peduncles elongated, terminal and in the forks of the stein. (HoUS- 

 tonia serpyllifolia, Michx.) — High mountains of North Carolina. — Stems G'- 

 12' long. Peduncles 1'- 2' long. 



3. O. rotundifolia, Gray. Perennial; stems diffuse, creeping; leaves 

 round or oval, fleshy, abruptly contracted into a short petiole ; peduncles mostly 

 shorter than the have-, recurved in fruit; flowers white. (Houstonia rotundi- 

 folia, Michx.) — Sandy soil near the coast, Florida to South Carolina, and west- 

 ward. February and March, and bearing apctalous fruiting flowers through the 

 year. 



* * CoroUaJunnel-shajwd : flowers dian'ously dimorphous : capsule free at the apex: 



stem 4-any/cd : flowers in terminal cymes, 



4. O. purpurea, Gray, Pubescent; stem branching, erect; leaves ovate 

 or lanceolate-ovate, sessile, 3-5-ribbod; calyx-lobes longer than the capsule; 



corolla purple or nearly white, slightly hairy within ; capsule roundish, (lb. ns 



Ionia purpurea, L.) — Woods, Mississippi to North Carolina, and oorthward. 



June and duly. -- Stems y'-l2' high. Calyx-lobes occasionally 3-4 tine 

 length of the capsule. 



