 |
| Camellia annamensis N.S.Lý, V.D.Lương, N.Đ.Đỗ, T.H.Lê & T.L.Nguyễn, in Lý, Lương, Lê, ... et Katayama, 2022. |
Abstract
Camellia annamensis, a new species of Camellia sect. Piquetia (Theaceae) from central Vietnam is described and illustrated. It is most similar to Camellia longii, but differs by its mature leaves sparsely appressed puberulous abaxially and leaf margins shallowly and widely denticulate, lateral veins 10‒13 pairs, sparsely appressed puberulous petioles, sepals 5, petals 20‒22, flattened-globose ovary and styles tomentose and free to base. Information on distribution, ecology, phenology, vernacular name, uses and conservation assessment of this new taxon, along with a key to distinguish the species of Camellia sect. Piquetia in Vietnam are also provided.
Keyword: Annamite range, Camellia honbaensis, C. longii, C. piquetiana, endemism, sect. Piquetia, sect. Lecomtia, taxonomy
 |
| Camellia annamensis N.S.Lý, V.D.Lương, N.Đ.Đỗ, T.H.Lê & T.L.Nguyễn. A. Leaf (adaxial view); B. Venation detail of leaf (abaxial view); C. Flower (lateral view); D. Flower (top view); E. Perules (adaxially shown); F. Petals (adaxially shown); G. Androecium; H. Gynoecium (other floral parts removed); I. Dried fruit. J. Seeds. Drawn from type materials by Văn-Dũng Lương. |
 |
| Camellia annamensis N.S.Lý, V.D.Lương, N.Đ.Đỗ, T.H.Lê & T.L.Nguyễn. A. Apical part of flowering plant in natural habit; B. Juvenile leaves; C. Flower buds; D. Flower (Front view); E. Flower (side view); F. Flower (bottom view); G. Dried fruit; H. Leaves (adaxial and abaxial views); I. Sepals (abaxially and adaxially); J. Petals (adaxially and abaxially); K. Cross-section of androecium showing stamens; L. Gynoecium with styles free to the base; M. Mature and dried fruits; N. Seeds. Photos by Ngọc-Đài Đỗ, the color plate by Ngọc-Sâm Lý. |
Camellia annamensis N.S.Lý, V.D.Lương, N.Đ.Đỗ, T.H.Lê & T.L.Nguyễn, sp. nov.
Diagnosis: Most similar to C. longii in shape and coloration of leave and flower, glabrous stamens and hairy ovary, but differing in having mature leaves sparsely appressed puberulous abaxially with leaf margins shallowly and widely denticulate (vs. glabrous, somewhat serrate), lateral veins 10‒13 pairs (vs. 14–16(– 18)), petioles sparsely appressed puberulous (vs. glabrous), sepals 5 (vs. 2‒3), petals 20‒22 (vs. 5‒6), flattened-globose ovary (vs. diamond shape) and styles tomentose and free to base (vs. finely pubescent, distally glabrous, compound, proximally fused for ca. 5.0 mm).
Etymology: The specific epithet “annamensis” refers to the former name of central Vietnam.
Ngọc-Sâm Lý, Văn-Dũng Lương, Thị-Hương Lê, Ngọc-Đài Đỗ, Ninh TRẦN, Anh-Đức Nguyễn, Thị-Liễu Nguyễn, Chiyomi Uematsu and Hironori Katayama. 2022. Camellia annamensis (Theaceae), A New Species from central Vietnam. Taiwania. 67(2); 243-249 DOI: 10.6165/tai.2022.67.243
