Dalbergia pilosa Adema, 2016

Adema, F., Ohashi, H. & Sunarno, B., 2016, Notes on Malesian Fabaceae (Leguminosae-Papilionoideae) 17. The genus Dalbergia, Blumea 61 (3), pp. 186-206 : 198

23. Dalbergia pilosa Adema , sp. nov.

In some aspects similar to other rather hairy species, like D. canescens , D. densa , D. velutina . However, D. pilosa differs in the inflorescences, that are raminascent or in the axils of just emerging leaves, the pedicels that are rather long (5–7 mm) and the slightly larger calyces (4.5–5.5 mm long) that are tomentose outside. — Type: Ridley 12266 (holo K; iso SING), Sarawak, Matang, Aug. 1890.

Twigs terete, 3–5 mm diam, tomentose. Leaves with 7–9 leaflets. Stipules ovate, 9–11 by 4–4.5 mm, outside tomentose, inside glabrous. Petiole terete, 2.8– 3 cm long, tomentose; rachis mostly as the petiole, 10–14.2 cm long; pulvinus 4–6 mm long. Leaflets: terminal elliptic, 8.2–9 by 3.1–3.2 cm, index 2.6–2.8, base cuneate, apex obtuse or rounded, apiculate, above thinly sericeous, below tomentose, midrib slightly sunken above, nerves flat above, 6–9 per side, 1–2 mm apart; lateral mostly as the terminal, ovate or elliptic, 4.8–7.7 by 1.8–3.4 cm, index 2.2–2.6, slightly oblique or equal-sided; pulvinus 2–5 mm long. Inflorescences raminascent, racemes or panicles, 4.5–7.5 cm long, peduncle 0.7–1.5 cm long, tomentose, branches 2–2.5 cm long. Bracts to the branches ovate, 3–5 by 2 mm, outside (thinly) tomentose, inside glabrous. Bracts to the flowers elliptic or narrowly ovate, 3.5–3.9 by 0.9–1.0 mm, outside tomentose, inside glabrous. Pedicels 5–7 mm long, ± tomentose. Bracteoles ± linear, 2.0–2.3 by 0.3–0.5 mm, outside tomentose, inside glabrous. Calyx 4.5–5.5 mm long, tube 3.5–4.5 mm long; teeth of upper lip triangular, 0.6–1.1 by 1.5–2.0 mm, lateral teeth triangular, 0.6–1.0 by 0.6–1.0 mm, median tooth triangular, 1.0–1.4 by 1.0–1.4 mm; outside tomentose, inside mostly glabrous, teeth inside with some hairs to tomentose. Standard: claw 2.5–3.0 mm long; blade ± orbicular, 2.5 by 2.5–3.0 mm, rounded, both sides glabrous. Wings: claw 3 mm long; blade broadly elliptic, 2.5 by 1.5–2.0 mm, rounded, auricles 0.2–0.6 mm long, both sides glabrous, outside sculpted. Keel petals: claw 2.5–2.7 mm long; blade boat-shaped, 2.5 by 1.5–1.6 mm, rounded, auricles 0.5 mm long, both sides glabrous. Stamens 9, monadelphous, open sheath, 5.2– 6 mm long, tube 3.3–4.0 mm long, free part of filaments 1–2 mm long, glabrous; anthers c. 0.1 by 0.2 mm, glabrous. Ovary glabrous or with few hairs at the upper suture, stipe glabrous; ovules 2; style glabrous. Pods broadly strap-like, ± membranous, transparent, 6.8 by 1.7 cm, valves 0.1 mm thick, glabrous. Seeds immature.

Distribution — Borneo: Sabah (Mt Kinabalu), Sarawak (Matang).

Habitat & Ecology — Altitude c. 1000 m. Flowering: March; fruiting: Augustus.

Specimens studied. BORNEO, SF 26652 (Carr), Sabah, Mt Kinabalu, Menetdok , c. 3000 ft, 20 Mar. 1933 ; Ridley 12266, Sarawak, Matang , Aug. 1890 .

Note — The label information is rather scanty, details about habit and (flower) colours are lacking. The Ridley specimen has rather young leaves and old flowers, the Carr specimen has not fully developed fruits with immature seeds.