Ixora piresii Steyerm.
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Authority
Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
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Family
Rubiaceae
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Scientific Name
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Description
Species Description - Arbor parva saltem 1.5 metralis; foliis ternatim verticillatis fere sessilibus, petiolis ad 2-3 mm longis; laminis oblanceolatis vel oblongo-oblanceolatis apice subacuminatis basin versus cuneatim angustatis basi ipsa rotundata 29-33 cm longis S-S.5 cm latis utrinque glabris, nervis lateralibus utroque latere 19-20 adscendentibus 4-5 mm ante marginem prominenter anastomosantibus, venulis tertiariis utrinque prominentibus; inflorescentia terminali 4 cm longa 6.5 cm lata (pedunculo non incluso); pedunculo principali 5.5 cm longo minute puberulenti, ramulis principalibus 5 ex apice pedunculi exoreuntibus 2-3.2 cm longis minute puberulentibus, quoque in cymas subcapitula crebre ad 15-floras desinente, ramulis brevibus 3-4 principalibus 1.5-2.5 mm longis 3-floris centralibus sessilibus aliis parce 0.5-1 mm pedicellatis puberulentibus; bracteis sub radiis principalibus in vaginam late triangularem 2.5 mm longam 3 mm latam glabram connatis, vagina in appendices subulatas vel lanceolatas subacutas patentes 2 mm longas 4 mm latas extus glabras intus sericeo-villosas desinente; bracteis ultimis sub floribus ligulatis vel linearibus subacutis 2.5-3.5 mm longis puberulentibus; brac-teolis duobus vix cernendibus subulatis 0.4-0.5 mm longis ad dimidiam parte hypanthii affixis; calyce hypanthioque 2-2.5 mm longo, hypanthio urceolato 1.2-l.8 mm longo 1.5-2 mm lato minute puberulenti; calycis lobis 4 ovato-oblongis vel suborbicularibus rotundatis atque erosis 0.8-1 mm longis 0.5 mm latis extus minute puberulentibus intus breviter sericeis atque glandulis basi 8-10 oblongis vel ovoideis munitis; corolla 21 mm longa, tubo 16 mm longo basi 1 mm lato fauce 1.8 mm lata extus dense puberulenti, lobis 4 oblongis vel obovoideo-oblongis rotundatis 7 mm longis 4-4.5 mm latis extus minute puberulentibus intus glabris; antheris ovato-oblongis 2 mm longis appendice obtusa 0.1 mm longa munitis, filamentis 0.8 mm longis; stylo 16 mm longo glabro; fructu subgloboso (immaturo) 6 mm longo 6 mm lato minute puberulenti.