New Taxa
The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)



No. 09 Meng-Qi Han, Ji-Dong Ya, Chao-Qun Li and Jie Cai

 




Petrocosmea purpureomaculata sp. nov. and P. wui sp. nov. (Gesneriaceae) from Yunnan, China with additions to P. coerulea and P. parryorum

 

 

Nordic Journal of Botany 2022: e03568

 

 





 

 

 

ABSTRACT

Two new species of Petrocosmea (Gesneriaceae), P. purpureomaculata M.Q.Han, J.Cai & J.D.Ya from Jinping County and P. wui M.Q.Han, J.Cai & J.D.Ya from Eshan County, Yunnan Province, China, are described and illustrated. Petrocosmea wui was previously misidentified as P. coerulea C.Y.Wu ex W.T.Wang due to its shield-shaped leaf base, but can be distinguished by several salient characters. Petrocosmea purpureomaculata is most similar to but distinguishable from P. parryorum C.E.C.Fischer. Additions and revisions of previously published descriptions of P. coerulea and P. parryorum, are also provided.

Original article link: https://onlinelibrary.wiley.com/doi/abs/10.1111/njb.03568





The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 1. Petrocosmea purpureomaculata sp. nov. (A) habit, (B) flower in front view, (C) flower in side view, (D) rhizomatous stem, (E) calyx and pistil, (F) longitudinally cut corolla, (G) adaxial lips in inside view and staminodes, (H) throat, (I) stigma, (J) throat in front view, (K) individual stamen in down view, (L) individual stamen in side view, (M) apex of anthers, (N) pistil, (O) individual stamen in above view and (P) transversely cut ovary.

 




The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 2. Petrocosmea purpureomaculata sp. nov. (A) flower in side view, (B–C) flower in front view, (D) flower in back view, (E) pair of stamens with adhering anthers from below view, (F) pair of stamens with adhering anthers from above view, (G) pistil, (H) calyx lobe, (I) habit, (J) rhizomatous stem, (K) transversely cut ovary. Drawn by Rong-Mei Zhang and Yuan Luo (K).

 




The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 3. Petrocosmea wui sp. nov. (A) habit, (B) flower in front view, (C) flower in side view, (D) flower in top view, (E) capsule, (F–H) approximately umbellate inflorescence, (I) cyme, (J) transversely cut corolla, (K) longitudinally cut corolla, (L) abaxial lip, (M) from left to right, pair of stamens with adhering anthers from below, from above and individual stamen in above and down view and (N) pistil.

 

 



The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 4. Petrocosmea wui sp. nov. (A) flower in front view, (B) flower in side view, (C) adaxial lips in inside view, (D) abaxial lip, (E) pistil, (F) individual stamen in above view, (G) individual stamen in down view, (H) pair of stamens with adhering anthers from below view, (I) pair of stamens with adhering anthers from above view, (J) habit, (K) calyx lobes, (L) transversely cut ovary. Drawn by Yuan Luo.

 




The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 5. Petrocosmea parryorum. (A) habit, (B) flowers in front view, (C) flowers in back view, (D) buds, (E) adaxial leaf blade surface, (F) abaxial leaf blade surface, (G) transversely cut corolla, (H) longitudinally cut corolla, (I) immature fruits and flowers, (J) pistil, (K) abaxial lip, (L) adaxial lips in inside view, (M) stigma, (N) capsule, (O) transversely cut ovary and (P) from left to right, pair of stamens with adhering anthers from side, from above, from below and individual stamen in above and down view.





The recently published new taxa and new records of Gesneriaceae from China before 31 December 2022 (9)

Figure 6. Petrocosmea coerulea. (A) habit, (B) flower in front view, (C) flower in back view, (D–E) flower in side view, (F) longitudinally cut corolla, (G) pistil, (H) ovary and stamens, (I) abaxial lip, (J) dissected calyx lobes, (K) stigma, (L) adaxial lips in front view, (M) adaxial lips in inside view, (N) adaxial in outside view, (O) transversely cut ovary and (P) from left to right, pair of stamens with adhering anthers from above, from below and individual stamen in down, above and side view. Photographed by Meng-Qi Han and De-Chang Meng (A).