Aspidostemon masoalense, Werff, 2006

Werff, Henk Van Der, 2006, A revision of the Malagasy endemic genus Aspidostemon Rohwer & Richter (Lauraceae), Adansonia (3) 28 (1), pp. 7-44 : 34

publication ID

https://doi.org/10.5281/zenodo.5186799

persistent identifier

https://treatment.plazi.org/id/03AE87F6-5D4D-FFDC-16D0-7455FCEFFB90

treatment provided by

Carolina

scientific name

Aspidostemon masoalense
status

 

19. Aspidostemon masoalense  

Van der Werff, sp. nov. ( Figs 7D View FIG ; 11C View FIG )

A congeneris floribus   staminibus tribus praeditis, gemmis terminalibus pubescentibus et inflorecentiis sparse puberulis distinguenda.

TYPUS. — Madagascar. Toamasina, Masoala Peninsula, trail to Ampanavoana , 15°36’S, 49°59’E, 130 m, 14.XII.1990, fl., Schatz & Modeste 3057 (holo-, GoogleMaps   MO; iso-, HBG, K, L, LE, NY, P, US, TAN).

DESCRIPTION

Tree, 8 m. Twigs angular, glabrous; terminal buds densely pubescent. Leaves opposite, 9-14 × 3.5- 4.5 cm, glabrous, elliptic, the base acute, the apex obtuse, margin flat, reticulation immersed on both surfaces, lateral veins difficult to discern, 10-14, petioles 7-10 mm, canaliculate. Inflorescences 2- 3 cm long, sparsely puberulous, paniculate; pedicels 1 mm long. Flowers 2.5-3 mm in diam., glabrous, gradually narrowed in the pedicel, about as wide as long; tepals c. 1 mm long and wide; stamens 3, the tips flattened, locelli lateral; staminodia of whorl II stipitiform, reddish pubescent; staminodia of whorl III with flat, peltate apex, this glabrous, the columnar filament with reddish hairs; staminodia III free; pistil slender, glabrous; inside of the receptacle glabrous. Fruits unknown.

REMARKS

Distinctive for A. masaolense   is the combination of flowers with 3 stamens, stipitiform, pubescent staminodia II and staminodia III with peltate, free apices and pubescent base. Vegetatively, the leaves with obtuse apices and densely pubescent terminal buds allow easy identification. Aspidostemon masoalense   is only known from the type collection ( Fig. 12 View FIG ). No vernacular name has been recorded.

ALTITUDINAL DISTRIBUTION

50-250 m.

PHENOLOGY

Flowers: December.