EcoFlora - Houstonia

Houstonia
Family: Rubiaceae Steven J. Baskauf	VPAP Resources JANAS 29(1) PLANTS: Annual or perennial herbs. LEAVES: opposite (in AZ), with inter-petiolar stipules. INFLORESCENCE: cymose or solitary. FLOWERS: het-erostylous (distylous) or homostylous; calyces 4-lobed; corollas 4-lobed, salverform, funnelform, or tubular; stamens 4; stigmas bifid. FRUITS: biloculate capsules, 1/4-3/4 inferior. SEEDS: 2-45 per capsule, crateriform, i.e., subglobose with interior hilar cavity lacking hilar ridge, or slightly to somewhat compressed, with linear or oblong hilar ridge in a saucer- or cup-shaped concavity. NOTES: 20 spp.; U.S., Can., Mex. (for William Houstoun, British physician). REFERENCES: Terrell, Edward E. 1995 Rubiaceae. Houstonia. J. Ariz. - Nev. Acad. Sci. 29(l): 36.
Species within checklist: County Checklists: Monroe Houstonia acerosa Map not Available Houstonia arenaria Map not Available Houstonia asperuloides Map not Available Houstonia bouvardioides Images not available Map not Available Houstonia brandegeana Map not Available Houstonia butterwickiae Map not Available Houstonia caerulea Map not Available Houstonia calycosa Map not Available Houstonia canadensis Map not Available Houstonia ciliolata Map not Available Houstonia coerulea Map not Available Houstonia correllii $Image of Houstonia correllii$ Map not Available Houstonia croftiae Map not Available Houstonia floridana Map not Available Houstonia humifusa Map not Available Houstonia lanceolata Map not Available Houstonia linnaei Map not Available Houstonia longifolia Map not Available Houstonia macvaughii Images not available Map not Available Houstonia micrantha Map not Available Houstonia montana Map not Available Houstonia mucronata Map not Available Houstonia mullerae Map not Available Houstonia ouachitana Map not Available Houstonia palmeri Map not Available Houstonia parviflora Map not Available Houstonia polypremoides Map not Available Houstonia procumbens Map not Available Houstonia prostrata Map not Available Houstonia purpurea Map not Available Houstonia pusilla Map not Available Houstonia pygmaea Map not Available Houstonia rosea Map not Available Houstonia rotundifolia Map not Available Houstonia rubra Map not Available Houstonia serpyllifolia Map not Available Houstonia setiscaphia Map not Available Houstonia sharpii Map not Available Houstonia spellenbergii $Image of Houstonia spellenbergii$ Map not Available Houstonia subviscosa Map not Available Houstonia tenella Map not Available Houstonia tenuifolia Map not Available Houstonia teretifolia Map not Available Houstonia umbratilis Map not Available Houstonia varians Map not Available Houstonia wrightii Map not Available