Coffea boinensis

C. boinensis Davis & Rakotonasolo

This is a small, single-stemmed tree (or monocaule), generally well-branched, ranging from 3 to 6 meters in height, with a DBH of 6 to 8 cm. The branches have a diameter of 1 to 3 mm, gray to brown in color, and feature flattened seasonal shoots of 2.5 to 3.5 mm in diameter, varying from green to brown in color. The leaves are stipulate and petiolate: the petiole is slightly pubescent (covered with white hairs measuring 0.2 to 0.3 mm in length); the leaf blade is deltoid to broadly deltoid, cordate or sometimes oval to elliptical, measuring 5.5 to 10 cm in length and 3.4 to 6.5 cm in width; the base of the leaf is truncate to sub-cordate; the apex is acute to broadly acute; and the adaxial surface is smooth.

The inflorescence measures 12.2 to 16.5 mm in length. The fruit is obovoid to pyriform or turbinate, measuring 1.8 to 2.7 cm in length and 1.9 to 2.5 cm in width. It turns yellow-green to yellow when mature. The seeds are elliptical to obovate, with a ventral invagination, and are light brown when dry.

C. boinensis is found along the west coast of Madagascar, in the Mahajanga province, in the Marovoay district, and is limited to the Ankarafantsika National Park. It occurs in seasonally dry, deciduous forests with white sandy substrates at altitudes ranging from 170 to 210 meters.

GBIF