Monographs Details:
Authority:
Mori, S. A. 1987. The Lecythidaceae of a lowland Neotropical Forest: La Fumée mountain, French Guiana. Mem. New York Bot. Gard. 44: 1-190.
Mori, S. A. 1987. The Lecythidaceae of a lowland Neotropical Forest: La Fumée mountain, French Guiana. Mem. New York Bot. Gard. 44: 1-190.
Family:
Menispermaceae
Menispermaceae
Description:
Latin Diagnosis - D. mexicanae Bullock affinis, sed caulibus junioribus dense setosis nec glabris, foliorum lamina multo minus profunde palmatilobata, spicae [female] pedunculo elongato filiformi, necnon endocarpii carinis argute serratis nec undulatis absimilis. Vitiformis, robusta, caulibus junioribus petiolisque pilis rigidiusculis lucidis patulis ad 1-1.5 mm usque longis setosis, foliorum laminis pilis brevioribus caeterum similibus setulosis, junioribus utrinque velutinis, maturis superne viri-dibus opacis inferne pallidis; foliorum petiolus ad 2 dm usque longus, lamina membranacea ambitu suborbicularis 2-3 dm diam basi profunde cordata (sinu aperto angulato), 5-lobata, lobis ovato-acuminatis integris sinu aperto rotundato inter se separatis, tota palmatim 7-nervia, nervis gracilibus utrinque prominulis, secundariis subtillimis, areolis ultimis magnis apertis; inflorescentia [male] ignota; inflorescentia [female] supra-axillaris solitaria, pedunculo filiformi 6-7 cm longo ± 0.3 mm diam, apice in spicae brevis ovoideae capitatae axin vix 1 cm longum abrupte dilatato; bracteae ovatae minutim puberulae 0.5 mm longae; flores parvuli conferti sessiles sed in prominentia laminari de latere compressa fere 1 mm alta elevati; flos [female]: sepala 6 ovata vel ovato-lanceolata inter se paullo imparia (externa longiora ac angustiora) 1.7-2 mm longa, 0.8-1 mm lata, omnia submembranacea in sicco brunnea; petala sepalis brevissime adnata quadrata, apice incrassato abrupte truncata, 0.7 mm longa subaequilata; ovaria glabra stigmate incluso 1 mm longa; drupa ± 1 cm longa subdimidio angustiori, exocarpio submembranaceo, carne mucilaginea tenui; endocarpium 9-10 mm longum 5.5 mm latum de visu dorsoventrali ovato-ellipticum, rectum, carinis alisque angustis argute serrulatis sectione deltatis ad 0.6 mm usque altis, testa coriacea ± 0.2 mm crassa, sulcis intercarinalibus papillis conicis uniseriatis obsitis, seminis cavitate oblonga 4 mm longa 2 mm lata.
Latin Diagnosis - D. mexicanae Bullock affinis, sed caulibus junioribus dense setosis nec glabris, foliorum lamina multo minus profunde palmatilobata, spicae [female] pedunculo elongato filiformi, necnon endocarpii carinis argute serratis nec undulatis absimilis. Vitiformis, robusta, caulibus junioribus petiolisque pilis rigidiusculis lucidis patulis ad 1-1.5 mm usque longis setosis, foliorum laminis pilis brevioribus caeterum similibus setulosis, junioribus utrinque velutinis, maturis superne viri-dibus opacis inferne pallidis; foliorum petiolus ad 2 dm usque longus, lamina membranacea ambitu suborbicularis 2-3 dm diam basi profunde cordata (sinu aperto angulato), 5-lobata, lobis ovato-acuminatis integris sinu aperto rotundato inter se separatis, tota palmatim 7-nervia, nervis gracilibus utrinque prominulis, secundariis subtillimis, areolis ultimis magnis apertis; inflorescentia [male] ignota; inflorescentia [female] supra-axillaris solitaria, pedunculo filiformi 6-7 cm longo ± 0.3 mm diam, apice in spicae brevis ovoideae capitatae axin vix 1 cm longum abrupte dilatato; bracteae ovatae minutim puberulae 0.5 mm longae; flores parvuli conferti sessiles sed in prominentia laminari de latere compressa fere 1 mm alta elevati; flos [female]: sepala 6 ovata vel ovato-lanceolata inter se paullo imparia (externa longiora ac angustiora) 1.7-2 mm longa, 0.8-1 mm lata, omnia submembranacea in sicco brunnea; petala sepalis brevissime adnata quadrata, apice incrassato abrupte truncata, 0.7 mm longa subaequilata; ovaria glabra stigmate incluso 1 mm longa; drupa ± 1 cm longa subdimidio angustiori, exocarpio submembranaceo, carne mucilaginea tenui; endocarpium 9-10 mm longum 5.5 mm latum de visu dorsoventrali ovato-ellipticum, rectum, carinis alisque angustis argute serrulatis sectione deltatis ad 0.6 mm usque altis, testa coriacea ± 0.2 mm crassa, sulcis intercarinalibus papillis conicis uniseriatis obsitis, seminis cavitate oblonga 4 mm longa 2 mm lata.
Discussion:
Type. COSTA RICA. Alajuela: alrededores de Bebedero, Guanacaste, fl. [female] + fr. mat. July 2, 1930, Alberto M. Brenes 12,724 (holotype, NY; isotype, F). This remarkable species is known like the related D. mexicana Bullock only from the pistillate plant bearing flowers and ripe drupes. The two species are alike in their ample 5-lobed leaf-blades and inconspicuous flowers. By comparison with D. spadicea the stems of D. mexicana are glabrous, the leaf-blade much more deeply lobed, and the peduncle of the pistillate flower much shorter and proportionately stouter. The endocarps of the two species are similar in general form, but that of D. mexicana is incurved, with merely undulate and not serrate lateral ribs and keels and with only a few inconspicuous papilli in the intervening grooves. The pistillate inflorescence of D. spadicea, with its filiform peduncle terminating in a little club-shaped or spadix-like spike of minute brown flowers is one of the curiosities of a genus rich in such features. The epithet spadicea refers both to the form and color of the inflorescence.
Type. COSTA RICA. Alajuela: alrededores de Bebedero, Guanacaste, fl. [female] + fr. mat. July 2, 1930, Alberto M. Brenes 12,724 (holotype, NY; isotype, F). This remarkable species is known like the related D. mexicana Bullock only from the pistillate plant bearing flowers and ripe drupes. The two species are alike in their ample 5-lobed leaf-blades and inconspicuous flowers. By comparison with D. spadicea the stems of D. mexicana are glabrous, the leaf-blade much more deeply lobed, and the peduncle of the pistillate flower much shorter and proportionately stouter. The endocarps of the two species are similar in general form, but that of D. mexicana is incurved, with merely undulate and not serrate lateral ribs and keels and with only a few inconspicuous papilli in the intervening grooves. The pistillate inflorescence of D. spadicea, with its filiform peduncle terminating in a little club-shaped or spadix-like spike of minute brown flowers is one of the curiosities of a genus rich in such features. The epithet spadicea refers both to the form and color of the inflorescence.