RUBIACEX. (MADDER FAMILY.) 181 
"Var. longifolia, Gray. Smooth; leaves lanceolate or linear, 1-ribbed, the 
lowest spatulate-oblong; calyx-lobes as long as the globose capsule. (Hous- 
tonia longifolia, Willd.) — With the preceding. 
Var. tenuifolia, Gray. Branches and pedicels filiform, spreading; leaves 
remote, narrow-linear; flowers and capsules smaller. (Houstonia tenuifolia, 
Nutt.) — Mountains of North Carolina. July. i 
5. O. angustifolia, Gray. Smooth; root woody; stems clustered, erect, 
branching above; leaves linear; cymes crowded, with the central flowers nearly 
sessile; corolla white, very hairy within; capsule ovoid, as long as the calyx- 
teeth. (Hedyotis stenophylla, Torr. & Gray.) — Sandy pine barrens, Florida, 
and westward. June and July. — Stems 19 - 2° high. 
Var.filifolia. Stem 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. 
* * * Corolla wheel-shaped, shorter than the calyx-lobes: flowers axillary and termi- 
nal, síngle or clustered, sessile: stamens and style very short: capsule enclosed. in 
the calyx-tube: perennial: stipules fringed. 
6. O. Boscii. Stems 4-angled, smooth, diffuse; leaves linear; flowers sin- 
gle, or 2-3 together; corolla white or purplish; capsule ovoid. (Hedyotis 
Boscii, DC.) — River-banks, Florida to South Carolina, and westward. Jay: 
— Stems 6/- 10' long. 
7. O. glomerata, Michx. Stems terete, smooth or piste branching ; 
leaves oblong or oval, short-petioled ; clusters dense, many-flowered ; corolla 
greenish-white. (Hedyotis glomerata, Ell.) — Wet places, Florida to North 
Carolina, and westward. July. — Stems 10/~15! high. 
* * * ** Corolla funnel-shaped, 5-lobed, longer than the calyz-teeth : flowers axillary 
and terminal, pentamerous : capsule top-shaped, included in the calyz-tube : annual: 
stipules fringed. 
8. O. Halei. Stem weak, diffuse, forking; leaves oval-oblong, acute at 
each end, somewhat fleshy; flowers solitary, or in short 3—5-flowered cymes, 
white. (Hedyotis Halei, Torr. § Gray.) — Banks of rivers, South Florida, and 
westward. July. E 
19. SPIGELIA, L. Pixxnoor. 
—C Calyx 5-parted ; the lobes linear-subulate, persistent. Corolla tubular-fun- 
5-lobed, valvate in the bud. Stamens 5: anthers linear. Style 
jointed, hairy above. Stigma capitate. Capsule composed of two few- 
etium which at length separate at the base and open loculicidally. — _ Us 
Leaves opposite. Flowers in one-sided terminal spikes, rarely solitary. 
De 1. 8. loganioides, A. DC. Stem simple, ascending, RE what à 
E tine part cim Vigháy Taba MAT Meth: ovate « or ol 
