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| Campanula luzhijiangensis Huan C. Wang & T. T. Wang, in Wang, Dang, Yang & Wang, 2022. |
Abstract
Campanula luzhijiangensis (Campanulaceae: Campanuleae) is described and illustrated as a new species from Yunnan, southwest China. The new species is mainly characterized by its relatively gracile stems polyphyllous, small and oblanceolate leaves, and flowers and fruits with small size within Chinese Campanula. It is only known from a single locality in the valley of the Luzhijiang River, usually occurring in the rock crevices, xerophilous scrubs or grasslands. A table of morphological characters comparing the new species with its closest relatives is provided along with a key to the species of Campanula from Yunnan Province, as well as a preliminary conservation assessment of C. luzhijiangensis under the IUCN criteria.
Keywords: Campanula mekongensis, Campanuleae, endemism, Luzhijiang Valley, morphology, taxonomy
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Campanula luzhijiangensis Huan C. Wang & T. T. Wang, A habit B adaxial surface of leaf C abaxial surface of leaf D flower E style and stamens F style G stamen H seed. |
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Campanula luzhijiangensis Huan C. Wang & T. T. Wang, A, B habit C plants in fruiting stage D plants in flowering stage E adaxial surface of leaf F abaxial surface of leaf G flower (side view). |
Campanula luzhijiangensis Huan C. Wang & T. T. Wang, sp. nov.
Diagnosis: Campanula luzhijiangensis is most similar to C. mekongensis Diels ex C. Y. Wu, but clearly distinguished from the latter by its stems with numerous leaf scars at base, leaves usually oblanceolate, relatively small, 0.3–2.0 cm long, 0.1–0.3 (– 0.5) cm wide, margin subentire or sparsely crenate, slightly recurved, hypanthium densely villous throughout, calyx lobes usually ovate, 1–2 mm long, 1.0–1.5 mm wide, corolla tubular-campanulate, tube 2–4 mm in diameter. In contrast, C. mekongensis has stems without leaf scars at base, leaves oblong, narrowly obovate or oblanceolate, 0.5–3.0 cm long, 0.3–1.2 cm wide, margin not recurved, serrate, hypanthium only hispid along ribs, calyx lobes subulate, 2–4 mm long, less than 1 mm wide, corolla campanulate, tube 6–10 mm in diameter.
Etymology: The specific epithet luzhijiangensis is derived from the type locality of the new species, the Luzhijiang Valley, and the Latin suffix ensis, indicating the place of origin or growth.
Ting-Ting Wang, Zeng-Yan Dang, Feng Yang and Huan-Chong Wang. 2022. Campanula luzhijiangensis (Campanulaceae), A New Species from Yunnan, southwest China. PhytoKeys. 206: 49-59. DOI: 10.3897/phytokeys.206.87109
