Aspidostemon trichandra, 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: 42-43

publication ID

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

persistent identifier

http://treatment.plazi.org/id/03AE87F6-5D75-FFE3-16D1-75F1FD82FEEB

treatment provided by

Carolina

scientific name

Aspidostemon trichandra
status

 

28. Aspidostemon trichandra  

Van der Werff, sp. nov. ( Figs 13D View FIG ; 16D View FIG )

A congeneris staminodiis III   omnino pilis brevibus obtectis recedit.

TYPUS. — Madagascar. Province de Diego-Suarez / Antsiranana, sous-préfecture de Vohemar, commune rurale de Daraina, forêt de Binara, 13°15’S, 49°37’E, 625 m, 29. GoogleMaps   III.2004, fl., Ranirison 528 (holo-, MO; iso-, G).

DESCRIPTION

Tree, 8 m. Twigs terete, glabrous, lenticellate, terminal buds glabrous. Leaves opposite, 12-15 × 3-4 cm, firmly chartaceous, glabrous, oblong to oblong-elliptic, the base acute, the apex finely acute to acuminate, the tip to 1.5 cm long and with an inrolled margin, reticulation immersed on upper surface, weakly raised on lower surface, lateral veins difficult to discern, c. 10 on each side, petioles c. 1 cm long, glabrous, terete and narrowly canaliculate above. Inflorescences 2.5-5 cm long, with a few scattered hairs, these denser towards the flowers, pedicels 2-3 mm long. Flowers 2-3 mm in diam., conical to broadly conical, tepals c. 0.5 mm long, 1 mm wide, the margin finely ciliate; stamens 3, the tips of the anthers flat, the locelli apical; staminodia II not recognized, either reduced and covered by the tepals or fused with the staminodia III, staminodia III with flattened, peltate apices, fused, densely covered with short, erect hairs, these obscuring the surface, pistil 2 mm long, the ovary spindle-shaped, glabrous, 1 mm long, style glabrous, receptacle glabrous inside. Fruits unknown.

REMARKS

Aspidostemon trichandra   can be readily recognized by the densely pubescent, flattened apices of the fused staminodia III. There are two other species with 3 stamens, fused staminodia III and staminodia III not glabrous, A. glandulosum   and A. synandra   . However, these species have papillose, not pubescent, staminodia III. In addition, A. glandulosum   has pubescent, not glabrous, terminal buds and A. synandra   has the center of the flowers raised, not flat, has smaller leaves (to 8 cm long), and has disc-shaped, not conical flowers. Aspidostemon trichandra   is only known from the type collection ( Fig. 17 View FIG ). No vernacular name has been recorded.

ALTITUDINAL DISTRIBUTION

600 m.

PHENOLOGY

Flowers: March.

IMPERFECTLY KNOWN SPECIES