Abstract
A new species de Gesneriaceae, Petrocodon curvitubus JXWEI, B.pan and T. Ding, sp. nov. From Guangxi, China, it is described and illustrated. The new species is morphologically similar to P. Lui and P. TenuitubusBut it can be easily distinguished by its elliptical leaves from oblong ovate, corollas with two purple longitudinal stripes and conical ovary.
Keywords: China, Gesneriaceae, Guangxi, limestone flora, new species
 |
| Petrocodon curvitubus JXWEI, B.pan and T. Ding, sp. nov. A plant in flower B surface of the abaxial leaf and the petiole C bracts d front view of the corolla and the side view of the flower that shows the corolla tube strongly curved the longitudinal section of the corolla that shows the position of the stamens F stamens with antiques g of pistilio and caliminous pistilio with sepalos dissected and stigmas j fruit. |
 |
| Petrocodon curvitubus JXWEI, B.pan and T. Ding, sp. nov. A habitat b plant on flower C surface of the adaxial leaf D surface of the abaxial leaf and front view of the open Flow F flower. I SEPALS J stamens (St.) and staminodes (sta.) Of a specimen k in pickled k and chalice with partially dissected sepals of a escabec specimen. |
Petrocodon curvitubus JXWEI, B.pan and T. Ding, sp. nov.
Diagnosis: P. Curvitubus is florally similar to P. Lui and P. Tenuitubus. However, it can be distinguished from them by sheet characteristics, with elliptical leaves to oblong, ovate, obtuse or accumulated slightly accumulated, dnerated base (vs. P. Lui, ovate or widely ovated; Subagudo or obtuse Apex, a base corded by shallow, oblique; Vs. P. TenuitubusOVED TO ORBICULAR; obtuse apex, symmetric or asymmetric base), corollas with purple stripes (vs. absent in P. Lui and P. Tenuitubus), obovados-eliptical corolla lobes to oblong, accumulated apex (vs. P. Luioblong lobes, obovated to suborbicular, obtuse apex; Vs. P. tenuitubus, closely ovate lobes, obtuse apex) and conical ovary, ca. 2.5 × ca. 0.8 mm (vs. P. Lui, Linear, ca. 3 × 1.5 mm; Vs. P. Tenuitubusovoid, 1–2 × 1–1.5 mm) (Table 1).
Etymology: The epithet originates in the heavily curved corolla tube.
Vernacular name: Wān guǎn shí shān jù tái (弯管石山苣苔), the first two words, “wān guǎn”, it means that the corolla tube is strongly curved, and the following four words, “Shí shān jù tái”, means Petrocodon In Chinese.
#Botany #Petrocodon #Curvitubus #Gesneriaceae #species #Guangxi #China
