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Primulina yandongensis Ying Qin & Yan Liu
in Qin, Yuan, Xu & Liu, 2018.
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ABSTRACT
Primulina yandongensis, a new species from the limestone area of southwestern Guangxi, China is described and illustrated. It is similar to P. pungentisepala (W. T. Wang) Mich. Möller & A. Weber in morphology, but it is easily distinguished from the latter by some of the distinct characters in cyme, corolla, filament, staminode and phenology. The detailed information, including morphological descriptions, illustrations and diagnostic comparisons etc. are provided.
KEY WORDS: China, Gesneriaceae, Limestone flora, New species, Primulina yandongensis.
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| Fig. 2. Primulina yandongensis A: Habitat. B: Flowering habit. C: Upper surface leaf. D: Cyme. E: Flower in side view. F: Flower in oblique view. G: Flower in face view. H: Opened corolla. I: Staminodes. J: Stamens. K: Pistil and calyx. L: Disc. M: Stigma. |
Primulina yandongensis Ying Qin & Yan Liu, sp. nov.
燕峒報春苣苔
Type: CHINA. Guangxi, Baise City, Debao County, Yandong Town,
elev. 559 m, ..., 26 September 2017, Debao expedition team of Chinese traditional medicine, 451024170926007LY
(holotype: IBK!, isotypes: IBK!).
The new species similar to Primulina pungentisepala (W. T. Wang) Mich. Möller & A. Weber in morphology, but it differs from the latter by its inflorescence 11–28- flowered, yellow corolla, thinner tube, filaments sparsely glandular-puberulent, 3 staminodes pubescent and sparsely glandular-puberulent.
....
Distinguishing characters: Primulina yandongensis
is morphologically close to P. pungentisepala. Shared
characters mainly include leaf with similar shape and
veins, peduncle with similar length and indumentum,
bracts with similar shape and indumentum. However, P.
yandongensis can be easily distinguished from the latter
by its inflorescence 11–28-flowered, yellow corolla,
tube 1.4–1.8 cm long, 5–8 mm in diameter at the mouth.
Etymology: The epithet is derived from the type
locality Yandong Town, Daobao County, Baise City,
Southwestern Guangxi, China.
Distribution, habitat and ecology: Primulina
yandongensis was known only from the limestone areas
of Yandong Town, Debao County, Baise City,
Southwestern Guangxi, China. This new species were
found from the cliffs of karst tiankengs, or from the
entrance of karst caves, and companied by
Hymenodictyon flaccidum Wallich, Miliusa sinensis
Finet & Gagnepain, Strophioblachia fimbricalyx
Boerlage, Trigonostemon thyrsoideus Stapf, Excoecaria
cochinchinensis var. viridis (Pax & K. Hoffmann)
Merrill, Alchornea trewioides (Bentham) Müller
Argoviensis, Rinorea bengalensis (Wallich) Kuntze,
Cipadessa baccifera (Roth) Miquel, Maesa perlarius
(Loureiro) Merrill, Tinomiscium petiolare Miers ex J. D.
Hooker & Thomson, Paphiopedilum hirsutissimum
(Lindley ex Hooker) Stein, Begonia chingii Irmscher,
Begonia edulis H. Léveillé, etc. ...
Ying Qin, Quan Yuan, Wei-Bin Xu and Yan Liu. 2018. Primulina yandongensis (Gesneriaceae), A New Species from southwestern Guangxi, China. Taiwania. 63(4); 305-310. DOI: 10.6165/tai.2018.63.305
