No.17 CONG-RUI LI, FANG-PU LIU, SUDHINDRA
R. GADAGKAR & YANG LUO
Petrocodon longitubus (Gesneriaceae), a new
species from Guizhou, China
Phytotaxa 408 (4): 267–275
Abstract
Petrocodon longitubus, a new species of Gesneriaceae from Guizhou province,
China, is described and illustrated. It is similar to P. hunanensis in having four stamens, but readily differs in being
rosulate and stemless and having a narrowly and very long infundibuliform
floral tube with the adaxial lip bending upward. Molecular evidence indicates
that it is sister to P. hunanensis,
but the two species differ markedly in morphology.
Original
link: https://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.408.4.3
FIGURE 1.
Majority rule consensus tree based on Bayesian inference analysis of Petrocodon based on ITS and trnL-F region. MPBS/BI-PP values (>
50%) are shown above branches. Asterisk represents MP-BS support values below
50%. Petrocodon longitubus is
highlighted in bold font.
FIGURE 2. Petrocodon longitubus Cong R.Li & Yang Luo (Drawn by Hua Xie). (A) mature
plant, (B) opened corolla showing stamens, (C) pistil, (D) fruit, (E) abaxial
leaf blade, (F) calyx and disc, (G) anther, (H) mature stigma.
FIGURE 3. Petrocodon longitubus Cong R.Li & Yang Luo (Photo by Hua Xie). (A) habitat,
(B) mature plant, (C) adaxial surface of leaf blade, (D) abaxial surface of
leaf blade, (E) calyx and disc, (F) front view of flower, (G) lateral view of
flower, (H) young fruit, (I) pistil with calyx and disc, (J) opened corolla
showing stamens and staminodes.