Sonneratia zhongcairongii, 2020

Zhong, Cairong, Li, Donglin & Zhang, Ying, 2020, Description of a new natural Sonneratia hybrid from Hainan Island, China, PhytoKeys 154, pp. 1-9 : 1

publication ID

https://dx.doi.org/10.3897/phytokeys.154.53223

persistent identifier

https://treatment.plazi.org/id/9CE00772-8AAA-5387-BF07-A87DD0D9C2B3

treatment provided by

PhytoKeys by Pensoft

scientific name

Sonneratia zhongcairongii
status

nothosp. nov.

S. x zhongcairongii Y. S. Wang & S. H. Shi nothosp. nov. Figure 1 View Figure 1

Material.

Dongzhai Harbour, mangrove forest Hainan Island, China (Fig. 1A View Figure 1 ), 19°58'12"N, 110°34'48"E, 13 June 2018, Cairong Zhong, No. Saa20180613-001 (Holotype: IBSC; Isotype: IBSC).

Morphological traits.

Trees, evergreen, 10-12 m tall, highly branched (Fig. 2A View Figure 2 ). Bark smooth or lightly fissured flaky, dark grey to pale fleshy green; stem base simple. Leaves simple, opposite, leaf blade leathery, glabrous, pale green, elliptical, 2-9 cm long,1-5 cm wide, apex obtuse, base acuminate, margin entire; petiole 0.3-1 cm; stipules absent. Inflorescence terminal or axillary, 1-3 or 1-5 flowered dichasia; flower bud ellipsoidal, 1.5-2.4 cm in length, 1-1.5 cm width, constricted medially, green, glossy, smooth, slightly angular; Calyx cup-shaped, lobes 4-6, wide ovate (0.8-1.2 cm long, 0.5-0.8 cm wide), apex acute, inner often fleshy green inside. Petals absent; stamens numerous along calyx, white, 1-1.5 cm in length; stigma peltate to 5 mm wide. Fruits not developed.

Distribution.

The hybrid is currently found only in Dongzhai Harbour within an area of 48 m2, mangrove forest, Hainan Island, China.

Habitat and ecology.

The hybrid grows in a mangrove forest.

Phenology.

The new hybrid flowered from the beginning of March to the end of October.

Conservation status.

The new hybrid S. x zhongcairongii was collected only from the mangrove forest in Dongzhai Harbour. At this site, only two individuals were observed.