Monographs Details:
Authority:
Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
Family:
Myrtaceae
Myrtaceae
Description:
Latin Diagnosis - Arbor 9 m alta, gemmis ramulisque novellis strigosis vel hirsutis, pilis crassis sordidis usque ad 1 mm longis obsitis; corolla calyceque intus creberrime pilis minusculis conicis obtectis; ramulis exalatis; foliis 9-12.5 cm longis, 2.5-plo longioribus quam latioribus, acuminatis; nervo medio impresso; venis utroque latere 8-10; petiolis 7-10 mm longis, basin versus rimosis; paniculis 4-10 cm longis, puberulis, inaequaliter ramosis, ramulis lateralibus brevibus, bracteis mox deciduis; alabastris 2.5-3.5 mm longis extus glabris, lobis distinctis.
Species Description - "Slender tree, 30 feet" (Gleason), the vegetative buds and youngest branchlets strigose to hirsute with coarse sordid acute mostly simple hairs to 1 mm long; midvein on lower leaf-surface at first closely appressed-strigose with similar, evanescent, hairs 1—1.5 mm long; inflorescence puberulent with pale straight or crisped hairs which are markedly shorter and fewer than those of the axillary shoots from which the panicles arise; petals and calyx-lobes thickly and uniformly pubescent within with minuscule erect broad-based hairs; leaves elliptieobovate, 3.5-5 cm wide, 9-12.5 cm long, mostly 2.5-2.7 times as long as wide. abruptly acuminate, gradually narrowed toward the base from above or near the middle, the-margins at the very base acutely narrowed and decurrent on the thin ventral edges of the deeply channeled petiole 1-2 mm thick, 7-10 mm long; distal portion of the petiole slender, smooth, the proximal portion pale, corky-thickened and rimose; midvein impressed above, prominent beneath; lateral veins 8-10 pairs, somewhat impressed above; marginal vein weaker than the laterals, slightly impressed above or scarcely apparent there, consisting of a series of bold asymmetric loops between the laterals, 2.5-5 mm from the margin; blades drying with minute surface irregularities, nearly featureless above, the lower surface minutely siliceo-verruculose with inconspicuous dark dots; panicles arising laterally from the 2 or 3 lowest nodes of new hirsute terminal or axillary branchlets. which if axillary are mostly 1-3 cm long, 1-2 mm wide, with terminal bud abortive; terminal branchlets sometimes leafy beyond the inflorescence; panicles 4-10 cm long, 8-12-flowered, once or twice compound, with elliptic subtending bract 2 mm wide, 6 mm long; peduncle 2-3 cm long, 1.5-2 mm wide below the lowest node; flowers clustered near the tips of the branchlets; bracts and bracteoles early deciduous; buds glabrous, obovoid, 2.5-3.5 mm long including a short pseudostalk; calyx-lobes very unequal, the two outer erect, narrow, sometimes linear or lanceolate, 1 mm long; 3 inner lobes broadly rounded, imbricate, usually much wider than long, 1-1.5 mm long, 1.5-2 mm wide; hypanthium glabrous, broadly campanulate, after anthesis explanate, with prominent large glandular dots on both surfaces, the splits between the calyx-lobes extending toward the middle through the staminal ring and leaving entire the central area 2-2.5 mm wide; lobes irregularly oblong or quadrangular, usually 5, to 2 mm wide, 1.5-2.5 mm long; style 4 mm long; stamens 60-75, 2.5-3 mm long, the anthers 0.4—0.5 mm long; petals 5, very unequal, early deciduous, ciliate, up to 2.5 mm long; ovary bilocular, with 2 ascending ovules in each locule.
Latin Diagnosis - Arbor 9 m alta, gemmis ramulisque novellis strigosis vel hirsutis, pilis crassis sordidis usque ad 1 mm longis obsitis; corolla calyceque intus creberrime pilis minusculis conicis obtectis; ramulis exalatis; foliis 9-12.5 cm longis, 2.5-plo longioribus quam latioribus, acuminatis; nervo medio impresso; venis utroque latere 8-10; petiolis 7-10 mm longis, basin versus rimosis; paniculis 4-10 cm longis, puberulis, inaequaliter ramosis, ramulis lateralibus brevibus, bracteis mox deciduis; alabastris 2.5-3.5 mm longis extus glabris, lobis distinctis.
Species Description - "Slender tree, 30 feet" (Gleason), the vegetative buds and youngest branchlets strigose to hirsute with coarse sordid acute mostly simple hairs to 1 mm long; midvein on lower leaf-surface at first closely appressed-strigose with similar, evanescent, hairs 1—1.5 mm long; inflorescence puberulent with pale straight or crisped hairs which are markedly shorter and fewer than those of the axillary shoots from which the panicles arise; petals and calyx-lobes thickly and uniformly pubescent within with minuscule erect broad-based hairs; leaves elliptieobovate, 3.5-5 cm wide, 9-12.5 cm long, mostly 2.5-2.7 times as long as wide. abruptly acuminate, gradually narrowed toward the base from above or near the middle, the-margins at the very base acutely narrowed and decurrent on the thin ventral edges of the deeply channeled petiole 1-2 mm thick, 7-10 mm long; distal portion of the petiole slender, smooth, the proximal portion pale, corky-thickened and rimose; midvein impressed above, prominent beneath; lateral veins 8-10 pairs, somewhat impressed above; marginal vein weaker than the laterals, slightly impressed above or scarcely apparent there, consisting of a series of bold asymmetric loops between the laterals, 2.5-5 mm from the margin; blades drying with minute surface irregularities, nearly featureless above, the lower surface minutely siliceo-verruculose with inconspicuous dark dots; panicles arising laterally from the 2 or 3 lowest nodes of new hirsute terminal or axillary branchlets. which if axillary are mostly 1-3 cm long, 1-2 mm wide, with terminal bud abortive; terminal branchlets sometimes leafy beyond the inflorescence; panicles 4-10 cm long, 8-12-flowered, once or twice compound, with elliptic subtending bract 2 mm wide, 6 mm long; peduncle 2-3 cm long, 1.5-2 mm wide below the lowest node; flowers clustered near the tips of the branchlets; bracts and bracteoles early deciduous; buds glabrous, obovoid, 2.5-3.5 mm long including a short pseudostalk; calyx-lobes very unequal, the two outer erect, narrow, sometimes linear or lanceolate, 1 mm long; 3 inner lobes broadly rounded, imbricate, usually much wider than long, 1-1.5 mm long, 1.5-2 mm wide; hypanthium glabrous, broadly campanulate, after anthesis explanate, with prominent large glandular dots on both surfaces, the splits between the calyx-lobes extending toward the middle through the staminal ring and leaving entire the central area 2-2.5 mm wide; lobes irregularly oblong or quadrangular, usually 5, to 2 mm wide, 1.5-2.5 mm long; style 4 mm long; stamens 60-75, 2.5-3 mm long, the anthers 0.4—0.5 mm long; petals 5, very unequal, early deciduous, ciliate, up to 2.5 mm long; ovary bilocular, with 2 ascending ovules in each locule.
Distribution:
Guyana South America|
Guyana South America|