Pflanzenwissen · Art
Description: — Subshrub 26 – 45 cm tall, monoecious, erect, caespitose, glabrous.
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Description: — Subshrub 26 – 45 cm tall, monoecious, erect, caespitose, glabrous. Branching phyllanthoid; deciduous branchlets (5 – 8) 12 – 16 cm long, cylindrical or sometimes zig-zagged, smooth, grayish to reddish or brownish. Cataphylls 1 – 1.2 mm long, triangular to oval-triangular, apex acuminate, margin entire, scarious, brownish. Stipules 1 – 1.1 mm long, oval-triangular, apex acuminate, margin entire, scarious, brownish. Petiole 1.4 – 1.9 mm long, cylindrical, slender, glabrous; leaf blade 1 – 1.3 × 0.4 – 0.7 cm, membranous, elliptical, oblong-elliptic to oblong, strongly asymmetrical, obtuse; apex obtuse and mucronulate; discolor; upper surface dark green; lower surface grayish or glaucous; venation brochidodromous, the midrib and laterals raised and conspicuous, the tertiary veinlets forming a delicate reticulum on lower surface. Staminate inflorescences in cincinni with two flowers, one in maturity and the other in bud and solitary pistillate flower, distributed randomly along the branches, but concentered in the terminal portion. Staminate flowers with pedicel 3.8 – 4 mm long, filiform, glabrous; sepals 5, 1 – 1.1 × 0.9 – 1 mm, obovate, apex obtuse, midvein evident, greenish; disk with five segments obtriangular, surface strongly smooth, margin wavy; stamens 3, free, filaments slender; anther sacs globose, dehiscing horizontally, not emarginated. Pistillate flowers with pedicel 6.7 – 8 mm long, cylindric-clavate; sepals 5, 2 – 2.1 × 1.2 – 1.3 mm, obovate, apex acute, pinnate; disk patelliform, margin crenulate; ovary ca. 1.5 mm long, globose, glabrous; styles 3, up to 1 mm long, free, slightly ascending and curved, bifid; stigmas capitate. Capsule 1.9 – 2 × 1.9 – 2 mm, globose; fruiting pedicel 6.9 – 8 mm long; sepals and styles persistent. Seeds ca. 2 × 1 mm, trigonous, smooth.
Pflege
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Heimisch
Brasilien
Vorkommen (Status unklar)
Brazil Southeast
Distribution and habitat: — Phyllanthus longipetiolatus is known from the state of São Paulo, Southeast region of Brazil (Fig. 2). The new species was collected mainly in the Carlos Botelho State Park which has an area of 37,644 ha covering the municipalities of Sete Barras, São Miguel Arcanjo, Capão Bonito and Tapiraí, in which the characteristic vegetation is the Montana and Submontana Dense Ombrophilous Forest. In addition, there are also smaller sections covered by Upper Montana Dense Ombrophilous Forest between 900 – 1000 m. a. s. l. and by “ Campos de Altitude ”, over shallow and stony soils (Lima et al. 2009). According with the vouchers analysed, P. longipetiolatus occurs in humid places in coastal rainforest and grows on clay soils covered by the leaf litter.
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Preliminary conservation status: — We estimate an area of occupancy (AOO) of 12 km 2 for P. longipetiolatus. The species is known from only two localities, both are within a protected area, the Carlos Botelho State Park, which can ensure the long-term stability of that population. Despite that, we assess the conservation status for P. longipetiolatus as Endangered (EN), under sub-criteria B 2 (a, b [iv]), due to the number of locations, and criterion D, due to the low number of known individuals.
Phenology: — Collected with flowers in April and October and with fruits in April and September, but it must blossom throughout the year, similar to other herbaceous taxa of genus.