Diospyros strigosa Hemsl.
- Dataset
- Notes on South-East Asian Diospyros L. (Ebenaceae, Ericales): commonly misidentified species in mainland South-East Asia
- Rank
- SPECIES
Classification
- kingdom
- Plantae
- phylum
- Tracheophyta
- class
- Magnoliopsida
- order
- Ericales
- family
- Ebenaceae
- genus
- Diospyros
- species
- Diospyros strigosa
biology_ecology
Ecology Diospyros strigosa is usually found near streams in lowland forest, 20 – 800 m elevations (Fig. 2).
description
Description Small tree or shrubby tree, up to 10 m tall. Young twigs sparsely to densely hairy. Bark brown, scaly, inner bark orange-brown, sapwood creamy white. Terminal and axillary buds, including inflorescence buds, covered by 2 – 5 imbricate scales. Leaves lanceolate, elliptic-lanceolate to elliptic-oblong, 7 – 15 × 2.5 – 5 cm, base rounded to slightly cordate, apex acuminate to caudate, blade pubescent or sparsely hairy on upper surface, sometimes glabrescent, lower surface strigose; lateral veins (5 –) 7 – 9 (– 12) on each side, curved but not arched near the margin, tertiary veins reticulate, sometimes coarsely scalariform; petiole short, 2 – 5 mm long, sparsely to densely hairy. Male flowers solitary or in short, few-flowered fascicle, axillary. Calyx campanulate, 4 – 7 mm long, hairy on both sides; lobes 4, divided halfway to ⅔ of the way to the base, triangular to narrowly triangular, ca 4 – 5 mm long, valvate, margin entire and flat. Corolla salverform, ca 1 cm long, hairy outside, glabrous inside; tube tubular, slightly widened in the middle; lobes 4, divided ⅓ of the way to the base, ovate, 3 – 4 mm long, curved outward. Stamens not seen. Female flowers solitary, axillary, sessile. Calyx campanulate, 5 – 6 mm long, hairy outside, glabrous inside; lobes 4, divided ⅔ of the way to the base, triangular, 3 – 4 mm long, valvate, margin reflexed. Corolla salverform, ca 1 cm long, hairy outside, glabrous inside; tube ovoid; lobes 4, divided ⅓ to halfway to the base, curved outward. Fruits sessile, ovoid, 2.5 – 2 × 1 – 1.5 cm, 2 - locular, apex acute or cuspidate (hardened stigma), hairy and later glabrescent, green when mature and turning reddish brown when ripe. Fruiting calyx slightly accrescent, hairy on both sides; lobes 4, divided nearly all the of the way to the base, lanceolate to ovate, 0.8 – 1.3 cm long, spreading or enclosing the fruits, margin flat or revolute. Seeds 2, sometimes both seeds fused into one.
description
Figs 1 E – F, 2
discussion
– Notes: Craib (1920) cited Kerr 2112 as the reference material of this species. Specimens of this gathering have been found in BK, E and K and the sheet at K is selected here as Craib was based in Kew when he was writing the Flora of Siam (Hill 1933; Stafleu & Cowan 1976).
discussion
– Notes: Hemsley (1910: 193) cited the gathering of Henry 8741 from Hainan in the protologue of D. strigosa. Two sheets have been located at K and P. As Hemsley was based in Kew (Stafleu & Cowan 1979) and the only sheet in K has Hemsley’s protologue attached, this sheet is designated here as the lectotype. The sheet of Henry 8741 at P is a possible isolectotype because the leaf shape does not perfectly match the sheet at K. While the specimen still appears to belong to D. strigosa, it might have been collected from a different tree.
materials_examined
Distribution CHINA • Hainan [Henry 8741 (K, P), McClure 8349 (A, BISH, BM, CAS, K, NY, P, US)]. LAOS • Locality not specified [Massie s. n. (P [P 00721748])], Bolikhamxai [Svengsuksa 84 (BKF)], Khammouane [Newman LAO 66 (BKF, E)]. THAILAND • Bueng Kan [Kerr 8538 (K)], Chanthaburi [Geesink 6751 (BKF, K), Larsen 31970 (BKF), Tagane 1811 (BKF)], Chonburi [Collins 506 (K), 1982 (K), Kerr 2112 (K), Maxwell 74 - 1090 (BKF)], Nakhon Nayok [Smitinand 10877 (BKF, K), Poopath 6139 (BKF)], Nakhon Ratchasima [Charoenphol 4387 (BKF, K)], Sa Kaeo [Middleton 201 (BKF, E, K)], Udon Thani [Suddee 3019 (BKF)]. VIETNAM • Hai Van Pass (Da Nang & Thua Hien Hue) [Poilane 7769 (P), 8080 (P)], Khanh Hoa [Poilane 6064 (P), 6837 (P)], Nghe An [Du 3141 (K)].
materials_examined
– Type: CHINA • Hainan, Ng Chi Leng; Dec. 1921; McClure 8349; syntypes: A [A 00010557]!, BISH [BISH 001283]!, BM [BM 000997436]!, CAS [CAS 0033254]!, K [K 000792328]!, NY [NY 00335006]!, P [P 00721453]!, US [US 00113421]!.
materials_examined
– Type: CHINA • Hainan; Nov. 1889; Henry 8741; lectotype: K [K 000792329]!, here designated; possible isolectotype: P [P 00721454]!.
materials_examined
– Type: THAILAND • Siam, Sriracha [Chon Buri, Si Racha]; 23 Sep. 1911; Kerr 2112; lectotype: K [K 000792526]!, here designated; isolectotypes: BM [BM 000884634]!, E [E 00318464]!.
materials_examined
– Type: VIETNAM • Annam, Col des Nuages, près Tourane [Hai Van Pass]; 18 Sep. 1923; Poilane 8080; lectotype: P [P 00721421]!, designated by Meeprom et al. (2022); isolectotype: P [P 05197352]!.
materials_examined
– Type: VIETNAM • Annam, Nhatrang Prov., Ile My Giang (près Ninh Hoa) [Khanh Hoa, My Giang Island]; 24 Apr. 1923; Poilane 6064; lectotype: P [P 00721503]!, designated by Meeprom et al. (2022); isolectotypes: P [P 00721504, P 00721505]!.
materials_examined
– Type: VIETNAM • Annam, Nhatrang Prov., Presqu’île de Han Heo [Khanh Hoa, Hon Heo Peninsula]; 12 Jun. 1923; Poilane 6837; lectotype: P [P 00721419]!, designated by Meeprom et al. (2022); isolectotype: P [P 00721420]!.