Wenchengia alternifolia C.Y.Wu & S.Chow 1965

Paton, Alan, Phillipson, Peter B & Suddee, Somran, 2016, Records of Wenchengia (Lamiaceae) from Vietnam, Biodiversity Data Journal 4, pp. 9596-9596 : 9596

Wenchengia alternifolia C.Y.Wu & S.Chow 1965

Materials

Type status: Isotype. Occurrence: catalogNumber: P04158076 ; recordNumber: 73689; recordedBy: F.C. How; Taxon: scientificName: Wenchengiaalternifolia; Location: country: China; stateProvince: Hainan; locality: Boating ; verbatimLocality: Po-ting; Identification: identifiedBy: Alan Paton; dateIdentified: 2016; Event: year: 1938; month: 9; day: 23; Record Level: institutionCode: P; basisOfRecord: PreservedSpecimen; source: http://coldb.mnhn.fr/catalognumber/mnhn/p/p04158076 Type status: Other material. Occurrence: catalogNumber: P03006424 ; recordNumber: 3376; recordedBy: J. & M.S. Clemens; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Da Nang; locality: Ba Na Hills ; verbatimLocality: Mt Bani, about 25 km from Tourane; Identification: identifiedBy: Somran Suddee; dateIdentified: 2001; Event: year: 1927; month: 6; verbatimEventDate: 4-13 June 1927; Record Level: institutionCode: P; basisOfRecord: PreservedSpecimen; source: http://coldb.mnhn.fr/catalognumber/mnhn/p/p03006424 Type status: Other material. Occurrence: catalogNumber: P04442939 ; recordNumber: 3882; recordedBy: J. & M.S. Clemens; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Da Nang; locality: Ba Na Hills ; verbatimLocality: Mt Bani, about 25 km from Tourane; Identification: identifiedBy: Alan Paton; dateIdentified: 2016; Event: year: 1927; month: 7; verbatimEventDate: Jul-1927; Record Level: institutionCode: P; basisOfRecord: PreservedSpecimen; source: http://coldb.mnhn.fr/catalognumber/mnhn/p/p04442939 Type status: Other material. Occurrence: catalogNumber: P03006423 ; recordNumber: 1516; recordedBy: P.A. Eberhardt; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Thua Thien-Hué; locality: Hai-Mit ; verbatimLocality: Thua Thien Province Hai-Mit; Identification: identifiedBy: Somran Suddee; dateIdentified: 2001; Event: verbatimEventDate: no date; Record Level: institutionCode: P; basisOfRecord: PreservedSpecimen; source: http://coldb.mnhn.fr/catalognumber/mnhn/p/p03006423 Type status: Other material. Occurrence: catalogNumber: P03006423 ; recordNumber: 1516; recordedBy: P.A. Eberhardt; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Thua Thien-Hué; locality: Hai-Mit ; verbatimLocality: Thua Thien Province Hai-Mit; Identification: identifiedBy: Somran Suddee; dateIdentified: 2001; Event: verbatimEventDate: no date; Record Level: institutionCode: P; basisOfRecord: PreservedSpecimen; source: http://coldb.mnhn.fr/catalognumber/mnhn/p/p03006422 Type status: Other material. Occurrence: catalogNumber: K001053643 ; recordNumber: 3376; recordedBy: J. & M.S. Clemens; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Da Nang; locality: Ba Na Hills ; verbatimLocality: Mt Bani, about 25 km from Tourane; Identification: identifiedBy: Alan Paton; dateIdentified: 2016; Event: year: 1927; verbatimEventDate: May to July 1927; Record Level: institutionCode: K; basisOfRecord: PreservedSpecimen; source: http://specimens.kew.org/herbarium/K001053643 Type status: Other material. Occurrence: catalogNumber: K001053644 ; recordNumber: 3882; recordedBy: J. & M.S. Clemens; Taxon: scientificName: Wenchengiaalternifolia; Location: country: Vietnam; stateProvince: Da Nang; locality: Ba Na Hills ; verbatimLocality: Mt Bani, about 25 km from Tourane; Identification: identifiedBy: Alan Paton; dateIdentified: 2016; Event: year: 1927; verbatimEventDate: May to July 1927; Record Level: institutionCode: K; basisOfRecord: PreservedSpecimen; source: http://specimens.kew.org/herbarium/K001053644 Type status: Other material. Occurrence: catalogNumber: 50063593 ; recordNumber: 9017; recordedBy: Hu Chi Ming; Taxon: scientificName: Wenchengiaalternifolia; Location: country: China; stateProvince: Hainan; verbatimLocality: Hainan; Identification: identifiedBy: Alan Paton; dateIdentified: 2016; Event: year: 1996; month: 7; day: 10; Record Level: institutionCode: MO; basisOfRecord: PreservedSpecimen; source: http://www.tropicos.org/Image/100124013

Description

Subshrubs 30-60 cm tall (15-40 cm in Hainan) with stems ascending, prostrate at base, leafless in lower parts with elevated reniform scars, hirtellous with short antrorse or patent eglandular hairs. Leaves alternate, rarely subopposite; blades usually oblanceolate to narrow elliptic (only oblanceolate in Hainan), 50-90 mm long, 5-28 mm broad (15-40 mm broad in Hainan) margins shallowly undulate to almost entire (only undulate in Hainan), base cuneate or narrowly cuneate and decurrent, apex obtuse to acuminate, abaxially hirtellous with short eglandular hairs on veins and margins, adaxially glabrous, glandular punctate on both surfaces; petioles 5-13 mm long. Inflorescences single, unbranched and terminal or with two or three unbranched inflorescences arising from the upper leaves (unbranched in Hainan) with single flowers spirally arranged but facing in one direction and subtended by a linear bract 3-5 mm long; bracteoles soon deciduous; pedicels 2 mm; inflorescence axis and pedicels hirtellous with short eglandular hairs and scattered sessile glands. Calyx purplish, 6 mm long, and 2-lipped with five shallow teeth, hirtellous with short eglandular hairs and scattered sessile glands; the upper lip with three equal, deltoid teeth; the lower lip is formed by two dilated and coalescent teeth, nearly truncate, just less than the length of the upper lip (difference in lip length is greater in Hainan material, but the Vietnamese material seen is less mature). Corolla, blue to deep purple (white also recorded in Hainan), tubular-campanulate, 2-lipped, 2.0-3.0 cm long, and sparsely covered by capitate glandular and nonglandular hairs; tube arcuate, with scattered hairs (rather than bearded in Hainan) at the middle inside, and 1.6-2.4 cm long with a narrow, bent base and a gradually dilated broad throat ranging in width from 6.0-8.5 mm; upper lip 2-lobed, 4.5-5.0 mm wide, and slightly concave; lower lip is 3-lobed,5.0-6.0 mm wide, subelliptic, and spreading. Ovary lobed for a quarter of its length, the style arising three-quarters of the way from the ovary base to its apex, pubescent and glandular in upper half; style branches unequal ( Cantino and Abu-Asab 1993) Fruit not seen; see Li et al. (2012) for fruit description. Pollen tricolpate, spherical to subprolate; exine is tectate-perforate and suprareticulate; in thin section, the endexine is thin, the foot layer discontinuous, the columellae are simple, and the tectum is discontinous ( Cantino and Abu-Asab 1993). Fig. 1

Habitat in Vietnam

Banks of forest trail or river. Altitude not recorded.