Dalbergia junghuhnii Benth.

Adema, F., Ohashi, H. & Sunarno, B., 2016, Notes on Malesian Fabaceae (Leguminosae-Papilionoideae) 17. The genus Dalbergia, Blumea 61 (3), pp. 186-206 : 195

15. Dalbergia junghuhnii Benth. — Fig. 1a , 3c

Dalbergia junghuhnii Benth.(1852) 254; (1860) 33; Prain (1897) 115;(1904) 40, t. 14; Backer & Bakh. f. (1964) 614; Sunarno & H. Ohashi (1997) 209. — Type: Junghuhn 233 (holo K K000827952 ; iso L), Sumatra.

Dalbergia frondosa Roxb. forma minor Miq. (1855) 134. — Dalbergia phyllanthoides Blume ex Prain (1901) 60; (1904) 44, t. 19; Ridl. (1922) 590. — Lectotype (here designated): Blume s.n. (L L0773379 ), Java.

Dalbergia subsympathetica Prain (1897) 116. — Lectotype (here designated): King’s coll. 3562 (K K000827943 ; iso L L0773398 ), Perak, Larut.

Dalbergia junghuhnii Benth. var. scortechinii Prain (1897a) 115; (1897b) 444. — Dalbergia scortechinii (Prain) Prain (1901) 57; Prain (1904) 40, t. 15; Ridl. (1922) 589; Sunarno & H.Ohashi (1997) 218. — Lectotype (here designated): Scortechini 1830 (K K000680046), Malacca.

Dalbergia curtisii Prain (1901) 58;(1904) 41, t. 16;Ridl.(1922) 589. — Lectotype (here designated): Curtis 812 (K K000680047 ), Penang.

Dalbergia stercoracea Maingay ex Prain (1901) 58; (1904) 42, t. 17; Ridl. (1922) 589. — Lectotype (here designated): Maingay 547/2 (K K000827944 left-hand specimen), Malacca.

Dalbergia frondosa auct. non Roxb.: Miq. (1855) 133.

Distribution — Thailand; Malesia: Sumatra,Peninsular Malaysia, Singapore, Java, Borneo, Celebes, Moluccas (Aru islands).

Habitat & Ecology — Primary or secondary forest, along rivers, forest margins, grass fields, dry area, or top of limestone hills. Soil: sandy loam, sandstone, limestone. Altitude up to 800 m. Flowering: January to September, December; fruiting: June, July, October, November.

Notes — In open areas often a scandent shrub or small tree, usually not taller than 10 m, in denser vegetation a large climber up to 35 m high. A rather variable species, especially variable in size and indumentum of leaflets and size of inflorescences. Although fruiting specimens may have well developed pods, the seeds are often not mature.

Dalbergia junghuhnii var. scortechinii was based on Curtis 1437, Scortechini 1830, Maingay 549 and Ridley 6406. Scortechini 1830 is chosen as the lectotype. All specimens belong to D. junghuhnii . Dalbergia stercoracea was described on specimens collected by Maingay, Mueller, Derry, Hullett, Ridley and Korthals, all cited without numbers. In Kew Maingay 547/2 was labelled as type specimen. Here we select this specimen as lectotype. However, Maingay 547/2 consists of several specimens, only those with small leaflets belong to D. junghuhnii ; those with large leaflets belong to an unidentified species. The lectotype is the left-hand specimen mounted on a sheet together with Maingay 1622 (right-hand specimen also D. junghuhnii ). Several specimens with obcordate or obcordate-elliptic leaflets with deeply emarginate apices have been included in D. junghuhnii : Kostermans s.n., Java, Udjung kulon, Peutjang Isl.; Maxwell 81-22, Singapore, Lazarus Isl.; Maxwell 81-94, Singapore. The last two specimens are almost totally glabrous. Nooteboom 6113, Aru Archipelago, Kobroor, has been included here.

Spines were observed in the specimens SAN 44057, 48584, 122728.

Figures

Fig. 1 Wings of Dalbergia species. a. D. junghuhnii Benth., not sculpted; b. D. candenatensis (Dennst.) Prain, sculpted; c. D. pinnata (Lour.) Prain, sculpted (a: SFN 38891 (Sinclair); b: Purseglove & Shah 4633; c: KL 3221). — Drawing by Manon Zuurmond.

Fig. 3 Pods of Dalbergia species. — Type c: a. D. borneensis Prain; b. D. densa Benth.; c. D. junghuhnii Benth.; d. D. latifolia Roxb.; e. D. mimosella (Blanco) Prain; f. D. pinnata (Lour.) Prain; g. D. rimosa Roxb.; h. D. rostrata Hassk.; i. D. sandakanensis Sunarno & H.Ohashi; j. D. sissoo Roxb.; k. D. velutina Benth. var. maingayi Prain (a: Haviland 2889; b: BW 9464 (Schram); c: King’s coll. 3562; d: Boschproefst. Tj 377; e: Sidiyasa 1408; f: Rahmat si Boeea 5943; g: BNBFD 5404 (Umbol); h: Shah & Shukor 2665; i: BS 1883 (Ramos); j: Popta 929; k: Maxwell 80-132). Scale bar with i only for i; scale bar for all other draw- ings in the middle. — Drawing by Esmée Winkel.