Dalbergia rostrata Hassk., 1842

Adema, F., Ohashi, H. & Sunarno, B., 2016, Notes on Malesian Fabaceae (Leguminosae-Papilionoideae) 17. The genus Dalbergia, Blumea 61 (3), pp. 186-206 : 200

29. Dalbergia rostrata Hassk. — Fig. 3h

Dalbergia rostrata Hassk. (1842a) 53; (1842b) 79; (1848) 398; Backer & Bakh. f. (1964) 615; Verdc. (1979) 296; Sunarno & H. Ohashi (1996) 245; (1997) 215. — Millettia rostrata (Hassk.) Miq.(1855) 155. — Type: Hasskarl s.n. (BO n.v.), Java (see note).

Dalbergia pseudosissoo Miq. (1855) 128; Prain (1897a) 118. — Lectotype (here designated): Hasskarl s.n. (L L0773027 )), Java, Tjietjieriengien.

Dalbergia rostrata Graham ex Prain (1901) 45, nom. illeg.; (1904) 60, t. 36; Ridl. (1922) 590; Niyomdham (2002) 159. — Type: Wallich 5867 (n.v.), Singapore.

Dalbergia championii Thwaites (1859) 94;Benth.(1860) 39. — Type: Thwaites 761 (holo K; iso BO), Ceylon, Hantam .

Derris subalternifolia Elmer (1913) 1801. — Dalbergia subalternifolia (Elmer) Merr. (1915) 15; (1923) 296. — Type: Elmer 12965 (L L0773000 ; iso BO, CAL, K), Philippines, Palawan, Puerto Princesa ( Mt Pulgar ).

Dalbergia simplicifolia Merr. (1916) 87. — Type: Hose 678 (BM, BO, E, K, L L0549658 ), Borneo , Sarawak, Miri.

Dalbergia sissoo auct. non Roxb.: Miq. (1855) 128.

Distribution — India, Ceylon, Thailand; Malesia: Sumatra, Peninsular Malaysia, Singapore, Java, Borneo, Philippines (Palawan), Moluccas, Irian Jaya.

Habitat & Ecology — Primary and secondary, disturbed or logged forests, sago swamp forest, kerangas, mangroves, along rivers and logging roads. Soil: loam, sandstone, ultramafic. Altitude up to 1200 m. Flowering: January, March to November; fruiting: March to May, Augustus, October, November.

Notes — Verdcourt (1979: 297) accepted Hildebrand’s identification of BW 5986 (Schram) and Aet 447 as D. simplicifolia , restricting his description to the New Guinean material, while noting that these specimens might well be a form of D. rostrata . Dalbergia sissoo is only cultivated in Indonesia (see also notes with D. sissoo ).

In the diagnosis of his new species D. rostrata Hasskarl (1842a) mentioned no material on which he based his description. Hasskarl repeated this diagnosis several times, each time elaborating on it, however, never citing any specimen ( Hasskarl 1842b, 1848). There is no Hasskarl material in L that bears evidence of being used by Hasskarl for the description of D. rostrata . Original or type material may be present in BO, but was certainly not recognised as such by the first author. The specimen Hasskarl s.n. (L 908.114-1385) given as type by Sunarno & Ohashi (1996) is not the type of D. rostrata . Sunarno & Ohashi (1996) cited the same specimen also as type for D. pseudosissoo Miq. The annotations on the label clearly show that this specimen was used by Miquel when he described D. pseudosissoo . As Miquel gives Java and Borneo as localities he clearly used more than one specimen as basis for his description. Instead of pointing out the ‘type’ Sunarno & Ohashi should have selected a lectotype. Here we select as lectotype of D. pseudosissoo Miq , the specimen Hasskarl s.n. (barcode L 0773027 (= L 908.114-1385)). The type of D. rostrata is probably a Hasskarl specimen in Bogor (Hasskarl s.n.) not seen by Adema.

Dalbergia rostrata is in many aspects very similar to D. minutiflora , but differs in the size of bracts, bracteoles and flower parts. Dalbergia rostrata has a wide distribution in Malesia, while D. minutiflora is endemic in Papua Barat (Irian Jaya).

Spines were observed in the specimens SAN 69005.

Figures

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.