Monographs Details: Leandra maguirei Wurdack
Authority: Maguire, Bassett & Wurdack, John J. 1964. The botany of the Guayana Highland--Part V. Mem. New York Bot. Gard. 10: 1-278.
Family:Melastomataceae
Scientific Name:Leandra maguirei Wurdack
Description:Latin Diagnosis - Sect. Secundiflorae. Ab sectionis omnibus speciebus differt conjunctione ramulis glandulifero-setulosis floribus 5-ineris ovario 3-loculari apice setuloso. Rami obtuse quadrato-sulcati petiolis inflorescentiisque dense longo-setulosi pilis brevioribus patentibus glanduliferis sparse vel dense intermixtis. Petioli 1.5-3 mm; lamina 5-9(-11) X 3.5-5.5(-7.5) cm ovata apice anguste acuta vel gradatim breviterque acuminata basi vix (ad 4 mm) cordata rigidiuscula, supra modice bullulato-setulosa pilis ca. 1 mm longis vix incurvis basi expansis, subtus modice longo-setulosa et leviter foveolata, 7-nervata inconspicue incurvo-denticulata. Panicula 7-12 cm longa oblongo-pyramidata ramis usque ad 4 cm longis; flores 5-meri sessiles vel breviter (ad 1 mm ) pedicellati; bracteolae ca. 1 mm longae spathulatae ciliolatae ad pedicellorum basim insertae persistentes. Hypanthium (ad torum) 3 mm longum dense brevisetosum pilis vix adscendentibus pilis brevioribus glanduliferis occultis sparse vel modice intermixtis; calycis tubus 0.1-0.2 mm altus, lobis interioribus 0.9-1 mm longis oblongo-orbicularibus ad margines vix ciliolatis, dentibus exterioribus callosis setulosis 0.7-0.9 mm eminentibus. Petala 2.5 X 0.8 mm apice acuta et mucronulata. Stamina isomorphica; filamenta 3-3.5 mm glabra; antherarum thecae 1.7-1.9 mm longae oblongae minute uniporosae, connectivo basi non prolongato sed dorsaliter appendice 0.2-0.3 mm longa descendenti truncata vel rotundata armato. Stylus 5 X 0.4 mm; stigma punctiforme; ovarium 3-loculare 2/3-inferum apice dense strigulosum pilis paucis glanduliferis intermixtis in collum lobulatuni 0.6 mm altum circum stylum protractum. Semina 0.7 X 0.4 mm ovoidea minutissime densissimeque tuberculata.

Discussion:

Type. Shrub 1-1.5 m, stems deep red, inflorescence pale pink, petals white, filaments salmon, anthers yellow, occasional along escarpment at east head of Canon Grande, Cerro de la Neblina, Terr. Amazonas, Venezuela, alt. 1900-2000 m, 17 Dec 1957, Bassett Maguire, John J. Wurdack, & Celia K. Maguire 42137 (holotype US 2342615). Paratypes. VENEZUELA, Terr. Amazonas. Cerro de la Neblina: upper escarpment slopes east of Camp 3, alt. 1700 m, Maguire, Wurdack, & Bunting 36841; escarpment west of Cumbre Camp, alt. 1700-1800 m, Maguire, Wurdack, & Bunting 37091.

L. maguirei would key to species 174-177 of Cogniaux' Monograph, but differs from them in the harsher pubescence and 5-merous flowers. The glanduliferous hairs of the Neblina endemic are somewhat obscured by the overtopping simple setae.