Monographs Details:
Authority:
Smith, Albert C. 1952. Plants collected in Ecuador by W. H. camp. Vaceiniaceae. Mem. New York Bot. Gard. 8 (1): 41-85.
Smith, Albert C. 1952. Plants collected in Ecuador by W. H. camp. Vaceiniaceae. Mem. New York Bot. Gard. 8 (1): 41-85.
Family:
Ericaceae
Ericaceae
Description:
Latin Diagnosis - Frutex epiphyticus ubique praeter antheras glaber, ramulis gracilibus junioribus obtuse angulatis vetustioribus teretibus; foliis subsessilibus, petiolis 1.5-3 mm longis, laminis coriaceis subbullatis in sicco fusco-brunneis, oblongis vel obovatooblongis 7.5-12.5 cm longis, 4-8 cm latis, basi manifeste cordatis et subauriculatis, apice rotundatis, margine recurvatis et sinuato-crenatis, costa valida supra sulcata vel basim versus elevata subtus prominente, nervis lateralibus utrinsecus 3-5 supra impressis subtus valde elevatis, eis basim versus validioribus curvatoadscendentibus, rete venularum conspicuo utrinque obtuse prominulo; inflorescentia completa non visa; pedicellis teretibus rugulosis ante anthesin circiter 10 mm longis basi bibracteolatis superne incrassatis, articulatione conspicuo, bracteolis pentagonis circiter 2.5 mm longis latisque subacutis; calyce turbinato 6-6.5 mm longo apice 4-5 mm diametro, tubo ruguloso obtuse angulato circiter 2.5 mm longo, limbo suberecto carnoso quam tubo longiore 5-lobato, lobis late deltoideo-ovatis circiter 1 x 2 mm apiculatis, sinibus obtusis; corolla (videtur paullo ante anthesin) urceolato-cylindrica carnosa 8-9 mm longa basim versus circiter 4 mm diametro superne angustata, lobis 5 deltoideis circiter 1 mm longis acutis; staminibus 10, filamentis liberis ligulatis minutis ad 1 mm longis margine superne pilosis, connectivis alternatis margine copiose albido-villosis (pilis circiter 0.5 mm longis), alteris obscure puberulis, antheris circiter 6 mm longis, thecis basi obtusis, tubulis quam thecis paullo brevioribus per rimas ovales magnas dehiscentibus; stylo tereti corollam subaequante truncato.
Species Description - (epiphyte; leaves dark green above, paler beneath, the veins red; young flowers pink).
Latin Diagnosis - Frutex epiphyticus ubique praeter antheras glaber, ramulis gracilibus junioribus obtuse angulatis vetustioribus teretibus; foliis subsessilibus, petiolis 1.5-3 mm longis, laminis coriaceis subbullatis in sicco fusco-brunneis, oblongis vel obovatooblongis 7.5-12.5 cm longis, 4-8 cm latis, basi manifeste cordatis et subauriculatis, apice rotundatis, margine recurvatis et sinuato-crenatis, costa valida supra sulcata vel basim versus elevata subtus prominente, nervis lateralibus utrinsecus 3-5 supra impressis subtus valde elevatis, eis basim versus validioribus curvatoadscendentibus, rete venularum conspicuo utrinque obtuse prominulo; inflorescentia completa non visa; pedicellis teretibus rugulosis ante anthesin circiter 10 mm longis basi bibracteolatis superne incrassatis, articulatione conspicuo, bracteolis pentagonis circiter 2.5 mm longis latisque subacutis; calyce turbinato 6-6.5 mm longo apice 4-5 mm diametro, tubo ruguloso obtuse angulato circiter 2.5 mm longo, limbo suberecto carnoso quam tubo longiore 5-lobato, lobis late deltoideo-ovatis circiter 1 x 2 mm apiculatis, sinibus obtusis; corolla (videtur paullo ante anthesin) urceolato-cylindrica carnosa 8-9 mm longa basim versus circiter 4 mm diametro superne angustata, lobis 5 deltoideis circiter 1 mm longis acutis; staminibus 10, filamentis liberis ligulatis minutis ad 1 mm longis margine superne pilosis, connectivis alternatis margine copiose albido-villosis (pilis circiter 0.5 mm longis), alteris obscure puberulis, antheris circiter 6 mm longis, thecis basi obtusis, tubulis quam thecis paullo brevioribus per rimas ovales magnas dehiscentibus; stylo tereti corollam subaequante truncato.
Species Description - (epiphyte; leaves dark green above, paler beneath, the veins red; young flowers pink).
Discussion:
Although the cited specimen is not entirely satisfactory, lacking attached or complete inflorescences, it obviously represents an undescribed species of Thibaudia. In its apparently rigidly carnose corolla, free filaments, erect elongate calyx-limb, and leaf-texture it suggests the Peruvian T. engleriana Hoer. From that species, however, T. clivalis differs in having its branchlets less sharply angled and its leaves subsessile, larger, and more deeply cordate at base. The flowers of the new species are not entirely mature, but they are comparatively small, with much shorter calyx-lobes, corollas, and stamens. Another species of this alliance, T. cardiophylla Sleumer, also of Peru, has the leaves smaller than those of the new species and the pedicels and comparatively large calyx densely pubescent.
Although the cited specimen is not entirely satisfactory, lacking attached or complete inflorescences, it obviously represents an undescribed species of Thibaudia. In its apparently rigidly carnose corolla, free filaments, erect elongate calyx-limb, and leaf-texture it suggests the Peruvian T. engleriana Hoer. From that species, however, T. clivalis differs in having its branchlets less sharply angled and its leaves subsessile, larger, and more deeply cordate at base. The flowers of the new species are not entirely mature, but they are comparatively small, with much shorter calyx-lobes, corollas, and stamens. Another species of this alliance, T. cardiophylla Sleumer, also of Peru, has the leaves smaller than those of the new species and the pedicels and comparatively large calyx densely pubescent.
Distribution:
Ecuador South America|
Ecuador South America|