Monographs Details:
Authority:
Cuatrecasas, José. 1985. Brunelliaceae (supplement). Fl. Neotrop. Monogr. 2: 28-103. (Published by NYBG Press)
Cuatrecasas, José. 1985. Brunelliaceae (supplement). Fl. Neotrop. Monogr. 2: 28-103. (Published by NYBG Press)
Family:
Brunelliaceae
Brunelliaceae
Description:
Latin Diagnosis - Arbor ca. 15 m alta satis frondosa. Rami terminales brunnescentes obtuse quadrangulati sublaeves aspectu glabrescentes sed breviter pubescentes pilis mi-nutis subpatentibus copiosis. Stipulae simplice geminatae deciduae in specimine tantum ad surculum terminalem praesentes, juveniles 2 mm longae sicut gemmae dense ochraceo-subsericeo-tomentosae. Folia opposita imparipinnata 4-5-juga, axi robusto 30-50 cm longo plus minusve dense tomentuloso pilis minutis patentibus vel subpatentibus ochraceis ab 0.1 mm longis, subtereti, adaxiale pla-niusculo et ad nodos stipelis geminatis anguste triangularibus ochraceo-tomentellis 2-3 mm longis, inteijugis 5-7 cm longis, petiolo 16-25 cm longo, robusto subtereti sed obscure striato et breviter fulvo-tomentello. Foliola opposita breviter petiolulata petiolulis lateralibus 2-3 mm longis terminalibus ca. 15 mm longis; lamina 10-19 × 3.7-6 cm firmula membranacea oblonga vel sublanceolato-oblonga ap-icem versus attenuata acuta acuminataque, acumine ca. 1 cm longo, basim paulo angustata asymmetrice obtusa vel obtusissima, margine plerumque bidentato-crenata crenis obtusissimis sed 1-2 minutissimis dentibus mucroniformibus acutis antrorsis munitis; adaxiale costa tenuiter prominula minute tomentulosa, nervis secundariis leviter subadpresse pilosis, reliqua superficie subglabra tantum pilis minutis ca. 0.1 mm fere obsoletis ad nervulos adspersis; abaxiale costa valde prominenti sursum obtuse carinata deorsum leviter striolata breviter fulvescenti-tomentosa, nerviis secundariis 14-18 utroque latere prominentibus parallelis 8-12 mm inter se distantibus, in angulo 50-60° patulo-ascendentibus prope mar-ginem curvato-anastomosantibus, nervis tertiis irregulariter transversis cum minoribus in reticulo laxiusculo prominulo anastomosantibus, areolis planis dense minuteque papillosis albicantibus plus pilis minutis rectis patentibus adspersis, nervatione dilute patuli-tomentella pilis copiosis ca. 0.1 mm longis. Paniculae axillares usque ad 35 cm longae et amplae, valde floribunda, pedunculo 12-18 cm longo robusto paulo compresso et obscure striato subglabro vel puberulo; prima divisione trichotoma robusta symmetrica, ceterae divisiones plerumque monochasiales aspectu dichotomicae ramis inaequalibus, ramulis ramusculisque copiosissimis gracilibus intricatisque. Pedunculi florales brevissimi; pedicelli 0.52 mm longi minute tomentelli pilis patentibus acutis 0.05-0.1 mm longis. Bracteae, bracteolaeque brevissimae lineares acutae villosae 1.5-0.5 mm longae, caducae. Flores feminei, pentameri, minuti. Alabastra globosa quinque-angulata 11.2 mm diam. Calyx expansus 2.5-3 mm diam., lobis oblongis subacutis 1 mm longis 0.9 mm latis, extus dilute puberulis parcis pilis minutis adpressis, margi-nibus dense papillosis, intus sursum antrorse villosulis. Staminodia 10, raro 8, valde minuta 0.5 mm longa anthera sterilia. Carpella 5, raro 4, ovario ca. 0.6 mm subrotundo-ovoideo laterale paulo compresso biovulato, dense hirto-tomen-toso et plus minusve hispidulo, stylo ca. 1 mm curvato tantum basi crassiori pilosulo. Discus 1 mm diam, levissime 10-indentatus dense minuteque tomen-tosus. Fructus absens.
Latin Diagnosis - Arbor ca. 15 m alta satis frondosa. Rami terminales brunnescentes obtuse quadrangulati sublaeves aspectu glabrescentes sed breviter pubescentes pilis mi-nutis subpatentibus copiosis. Stipulae simplice geminatae deciduae in specimine tantum ad surculum terminalem praesentes, juveniles 2 mm longae sicut gemmae dense ochraceo-subsericeo-tomentosae. Folia opposita imparipinnata 4-5-juga, axi robusto 30-50 cm longo plus minusve dense tomentuloso pilis minutis patentibus vel subpatentibus ochraceis ab 0.1 mm longis, subtereti, adaxiale pla-niusculo et ad nodos stipelis geminatis anguste triangularibus ochraceo-tomentellis 2-3 mm longis, inteijugis 5-7 cm longis, petiolo 16-25 cm longo, robusto subtereti sed obscure striato et breviter fulvo-tomentello. Foliola opposita breviter petiolulata petiolulis lateralibus 2-3 mm longis terminalibus ca. 15 mm longis; lamina 10-19 × 3.7-6 cm firmula membranacea oblonga vel sublanceolato-oblonga ap-icem versus attenuata acuta acuminataque, acumine ca. 1 cm longo, basim paulo angustata asymmetrice obtusa vel obtusissima, margine plerumque bidentato-crenata crenis obtusissimis sed 1-2 minutissimis dentibus mucroniformibus acutis antrorsis munitis; adaxiale costa tenuiter prominula minute tomentulosa, nervis secundariis leviter subadpresse pilosis, reliqua superficie subglabra tantum pilis minutis ca. 0.1 mm fere obsoletis ad nervulos adspersis; abaxiale costa valde prominenti sursum obtuse carinata deorsum leviter striolata breviter fulvescenti-tomentosa, nerviis secundariis 14-18 utroque latere prominentibus parallelis 8-12 mm inter se distantibus, in angulo 50-60° patulo-ascendentibus prope mar-ginem curvato-anastomosantibus, nervis tertiis irregulariter transversis cum minoribus in reticulo laxiusculo prominulo anastomosantibus, areolis planis dense minuteque papillosis albicantibus plus pilis minutis rectis patentibus adspersis, nervatione dilute patuli-tomentella pilis copiosis ca. 0.1 mm longis. Paniculae axillares usque ad 35 cm longae et amplae, valde floribunda, pedunculo 12-18 cm longo robusto paulo compresso et obscure striato subglabro vel puberulo; prima divisione trichotoma robusta symmetrica, ceterae divisiones plerumque monochasiales aspectu dichotomicae ramis inaequalibus, ramulis ramusculisque copiosissimis gracilibus intricatisque. Pedunculi florales brevissimi; pedicelli 0.52 mm longi minute tomentelli pilis patentibus acutis 0.05-0.1 mm longis. Bracteae, bracteolaeque brevissimae lineares acutae villosae 1.5-0.5 mm longae, caducae. Flores feminei, pentameri, minuti. Alabastra globosa quinque-angulata 11.2 mm diam. Calyx expansus 2.5-3 mm diam., lobis oblongis subacutis 1 mm longis 0.9 mm latis, extus dilute puberulis parcis pilis minutis adpressis, margi-nibus dense papillosis, intus sursum antrorse villosulis. Staminodia 10, raro 8, valde minuta 0.5 mm longa anthera sterilia. Carpella 5, raro 4, ovario ca. 0.6 mm subrotundo-ovoideo laterale paulo compresso biovulato, dense hirto-tomen-toso et plus minusve hispidulo, stylo ca. 1 mm curvato tantum basi crassiori pilosulo. Discus 1 mm diam, levissime 10-indentatus dense minuteque tomen-tosus. Fructus absens.
Discussion:
Brunellia gentryi is closely related to B. hygrothermica, from which it differs by its extra-small flowers, the diameter of the flattened calyx being only 2.5-3 mm with lobes 1 × 0.5 mm long, the smallest found in the genus. Also, the leaves are membranaceous, much thinner and smaller than in B. hygrothermica. The main branches of inflorescences are shortly pubescent or puberulent, while they are glabrous in B. hygrothermica. The terminal floral branchlets and pedicels in B. gentryi are minutely tomentose with patent or erecto-patent hairs, while in B. hygrothermica they are rather appressed or substrigose and smaller. Flowers in B. hygrothermica have calyces 4.5-6 mm diam., the calyx lobes 1.5-2 mm long × 1-1.6 mm wide.
Brunellia gentryi is closely related to B. hygrothermica, from which it differs by its extra-small flowers, the diameter of the flattened calyx being only 2.5-3 mm with lobes 1 × 0.5 mm long, the smallest found in the genus. Also, the leaves are membranaceous, much thinner and smaller than in B. hygrothermica. The main branches of inflorescences are shortly pubescent or puberulent, while they are glabrous in B. hygrothermica. The terminal floral branchlets and pedicels in B. gentryi are minutely tomentose with patent or erecto-patent hairs, while in B. hygrothermica they are rather appressed or substrigose and smaller. Flowers in B. hygrothermica have calyces 4.5-6 mm diam., the calyx lobes 1.5-2 mm long × 1-1.6 mm wide.
Distribution:
Colombia South America| Chocó Colombia South America|
Colombia South America| Chocó Colombia South America|