KUBIACE.E. (MADDEK FAMILY.) 199 



Stigmas 2. Capsule 2-celled, free from the calyx above, opening across the 

 top. Seeds few or numerous. Albumen horny. — Low herbs, with solitary 

 or cymose white or blue flowers. 



* Corolla salver-shaped : peduncles axillary, solitary. 



1. H. eCErulea, L. (Innocence.) Perennial; stems erect, 4' -6' high; 

 radical leaves tufted, spatulate-obovate, obtuse, the ujjper small and distant ; 

 pedicels erect or declining; flowers nodding in the bud; corolla 5" -6" wide, 

 blue or white with a yellow eye, its tube thrice the length of the subulate 

 calyx lobes ; capsule obcordate. — Low ground chiefly in the upper districts. 

 April -May. 



2. H. patens, Ell. Annual; stems erect ; radical leaves acute ; branches 

 and pedicels spreading; flowers erect in the bud; corolla 3" wide, deep blue, 

 and no yellow eye, its tube twice the length of the calyx lobes ; otherwise like 

 the preceding. — Roadsides and dry banks. Feb. -April. 



3. H. serpyllifolia, Michx. Perennial, smooth; stems filiform, pros- 

 trate, branching ; leaves ovate or roundish, abruptly contracted into a long 

 slender petiole ; peduncles elongated, terminal, and in the forks of the stem. 

 — High mountains of North Carolina. — Stems 6' - 12' long. Peduncles 1'- 

 2' long. Flowers deep blue. 



4. H. rotundifolia, ^lichx. Perennial; stems diffuse, creeping ; leaves 

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

 mostly sliorter than the leaves, recurved in fruit ; flowers white. — Sandy soil 

 near the coast, Florida to South Carolina, and westward. Feb. -March, and 

 bearing inconspicuous fruiting flowers through the year. 



* * Corolla funnel-shaped: flowers diceciously dimorphous : capsule free at the 

 apex : stem 4t-an(/led : flowers in terminal ci/mes. 



5. H. purpurea, L. Pubescent ; stem branching, erect ; leaves ovate 

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

 corolla purjfle or nearly white, slightly hairy within ; capsule roundish. — 

 Woods, chiefly in the upper districts. June -July. — Stems 8'- 12' high. 

 Calyx lobes occasionally 3-4 times the length of the capsule. 



Var. longifolia, (iray. Smooth ; leaves lanceolate or linear, 1-ribbed, the 

 lowest spatulate-oblong ; calyx lobes as long as the globose capsule. — With 

 the preceding. 



Var. tenuifolia, Gray. Branches and pedicels filiform, spreading; 

 leaves remote, narrow-linear ; flowers and capsules smaller. — Mountains of 

 North Carolina. July. 



6. H. angUStifolia, Michx. Smooth; root woody; stems clustered, 

 eret't, branching al)Ove ; leaves linear ; cymes crowded, with the central 

 flowers nearly sessile ; corolla white, very hairy within ; capsule ovoid, as 

 long as the calyx teeth. — Sandy pine barrens, Florida, and westward. June - 

 July. — Stems 1° - 2° high. 



Ynr. filifolia, Gray. Stems shrubby at the base, diffusely branched ; 

 leaves filiform, remote ; cymes scattered, 3-flowered, the slender pedicels 

 equal and spreading; capsule obcordate, rather longer than the calyx teeth, 

 the upper half free. — South Florida. — Stem slender, 6'- 10' long. Flowers 

 and capsules very small. 



