“国内最新科研成果”系列之2020年第四期
New Research Results from China in 2020 No. 4
温放, 辛子兵, 符龙飞, 黎舒，苏兰英，Stephen Maciejewski，黄章杰,
Truong Van Do&韦毅刚
Fang Wen, Zi-Bing Xin, Long-Fei Fu, Shu Li, Lan-Ying Su,Stephen Maciejewski,
Zhang-Jie Huang, Truong Van Do, Yi-Gang Wei
越南南部具弯曲花冠筒的岩栖性苦苣苔科一新单型属——折筒苣苔属Michaelmoelleria
Michaelmoelleria(Gesneriaceae), a new lithophilous dwelling genus and species with zigzag corolla tube from southern Vietnam
PhytoKeys 146: 89–107 (2020)
摘 要
本文描述了越南南部一单一种新属——折筒苣苔属Michaelmoelleria。新属在形态上与奇柱苣苔属Deinostigma和鼓包苣苔属Tribounia最为相似，但可从后两者具有四个可育雄蕊进行区分。通过新属和长蒴苣苔族Didymocarpeae的42属中87个种的核基因片段ITS和叶绿体片段trnL-F序列数据，来确定该新属的系统位置。分子证据表明，新属与扁蒴苣苔属Cathayanthe的亲缘关系较奇柱苣苔属和鼓包苣苔属更为接近。新属染色体数2n= 36，进一步明确了其与长蒴苣苔族内其余近缘属相比的独特性。进行了濒危等级评价并将该属内目前已知的唯一的一个种，折筒苣苔Michaelmoelleria vietnamensis的濒危等级确定为极危（CR）
*说明：产自国外的苦苣苔科属的中文名称源“多识植物百科（http://duocet.ibiodiversity.net/），本新属中文名为作者自拟”
原文链接：https://phytokeys.pensoft.net/article/49731/
ABSTRACT
Michaelmoelleria, a new genus from southern Vietnam is described with a single species, M. vietnamensis. The new genus is morphologically most similar to Deinostigmaand Tribouniabut it differs from the latter two by having four fertile stamens. Nuclear ribosomal internal transcribed spacer (ITS) region and plastid trnL-Fintron spacer (trnL-F) DNA sequence data from the new genus and eighty-seven species representing 42 genera within tribe Didymocarpeae are used to resolve its generic placement. The molecular evidence reveals that it is most closely related to Cathayantherather than Deinostigmaand Tribounia. The chromosome number is counted as 2n= 36that further clarified its distinction comparing to the related genera within tribe Didymocarpeae. A global conservation assessment is also performed and classifies Michaelmoelleria vietnamensisas Critically Endangered (CR).
Original article link:https://phytokeys.pensoft.net/article/49731/
图1.新属——折筒苣苔属的自然栖息地种群。折筒苣苔Michaelmoelleria vietnamensis F. Wen, Z.B. Xin & T.V. DoALaStream的生境B植株C花期植株D在自然栖息地花朵的正视图E在自然栖息地花朵的侧视图。由温放摄影，徐文华整理。
Figure 1.Photos of the new genus, Michaelmoelleria, the population in natural habitat. M. vietnamensis F.Wen, Z.B.Xin & T.V.Do Ahabitat along the La stream Bhabit Cplants in flower Dfrontal view of flower in natural habitat Elateral view of flower in natural habitat. Photos by Fang Wen, arranged by Wen-Hua Xu.
Figure 2.The Bayesian Inference 50% majority rule consensus tree from the combined dataset of trnL-trnFand ITS. Numbers on the branches indicate the posterior probability (≥0.5) of Bayesian inferenceanalysis and bootstrap values (≥50%) of the maximum likelihood. BOLDFACEindicates the new species/new genus. Created by Long-Fei Fu.
Figure 3.Somatic chromosomes at metaphase of Michaelmoelleria vietnamensisF. Wen, Z.B. Xin &T.V. Do, 2n= 36 A–Care from different cells, solid arrow and, satellites. Photos and arrangements byLan-Ying Su.
图4. 新属折筒苣苔属MichaelmoelleriaF. Wen, Y.G. Wei & T.V. Do. 折筒苣苔M. vietnamensis F. Wen, Z.B. Xin & T.V. Do 的照片。AGCCC温室内盆栽开花植株B花冠及花冠筒正视图 C花冠和花冠筒不同角度的侧视图(I) D花冠和花冠筒不同角度的侧视图(II) E聚伞花序F苞片（上面：正面；下面：背面）G花萼萼片H花和芽的侧视图I花萼萼片（左边三个：花萼萼片正面；右边两个：花萼萼片背面）J剖开的花冠，示雄蕊和退化雄蕊 K 肥厚的花药L雌蕊和花萼M柱头。由温放摄影，徐文华整理。
Figure 4.Photos of new genus, MichaelmoelleriaF. Wen, Y.G. Wei & T.V. Do. M. vietnamensis F. Wen,Z.B. Xin & T.V. Do Aflowering potted plant in GCCC’s greenhouse Bfrontal view of the corolla andthe corolla tube Cdifferent angles of a lateral view of corolla and corolla tube (I) Ddifferent anglesof lateral view of the corolla and the corolla tube (II) Ecyme Fbracts (above: adaxial surface; below:abaxial surface) Gcalyx lobes Hlateral view of flower and bud Icalyx lobes (the left three: adaxial calyxlobes surfaces; the right two: abaxial calyx lobes surfaces) Jopened corolla showing stamens and staminodeK our fertile anthers Lpistil and calyx Mstigma. Photos by Fang Wen, arranged by Wen-Hua Xu.
图5.折筒苣苔Michaelmoelleria vietnamensis F. Wen, Z.B. Xin & T.V. Do相关属/种——扁蒴苣苔Cathayanthe bifloraChun的照片A生境B花序和花朵正视图C聚伞花序和花朵侧视图D果实。由温放摄影，徐文华整理。
Figure 5.Photos of Cathayanthe bifloraChun, the related genus/species of Michaelmoelleria vietnamensis F. Wen, Z.B. Xin & T.V. Do Ahabitat Bcyme and frontal view of flower Ccyme and lateral view offlower Dfruit. Photos by Fang Wen, arranged by Wen-Hua Xu.
图6.与折筒苣苔属MichaelmoelleriaF.Wen, Y.G.Wei & T.V.Do (折筒苣苔M. vietnamen sisF.Wen, Z.B.Xin & T.V.Do)形态上相近的属和种——奇柱苣苔属DeinostigmaW.T.Wang & Z.Y.Li (A–E) 和鼓包苣苔属TribouniaD.J.Middleton (F–I)的照片, A Deinostigma eberhardtii(Pellegr.) D.J.Middleton & H.J.Atkins B D. tamiana(B.L.Burtt) D.J.Middleton & H.J.Atkins C D. cycnostyla(B.L.Burtt) D.J.Middleton & H.J.AtkinsD 多痕奇柱苣苔D. cicatricosa(W.T.Wang) D.J.Middleton & Mich.Möller E 弯果奇柱苣苔D. cyrtocarpa(D.Fang & L.Zeng) Mich.Möller & H.J.Atkins F–G Tribounia venosa(Barnett) D.J.Middleton H–I T. grandifloraD.J.Middleton.A–E由温放摄影F–I由David Middleton摄影，徐文华整理。
Figure 6.Photos of DeinostigmaW.T.Wang & Z.Y.Li (A–E) and TribouniaD.J.Middleton (F–I), themorphologically similar genera and species of MichaelmoelleriaF.Wen, Y.G.Wei & T.V.Do (M. vietnamen sisF.Wen, Z.B.Xin & T.V.Do) A Deinostigma eberhardtii(Pellegr.) D.J.Middleton & H.J.Atkins B D. tamiana(B.L.Burtt) D.J.Middleton & H.J.Atkins C D. cycnostyla(B.L.Burtt) D.J.Middleton & H.J.AtkinsD D. cicatricosa(W.T.Wang) D.J.Middleton & Mich.Möller E D. cyrtocarpa(D.Fang & L.Zeng) Mich.Möller & H.J.Atkins F–G Tribounia venosa(Barnett) D.J.Middleton H–I T. grandifloraD.J.Middleton.A–Ephotos by Fang Wen F–Iphotos by David Middleton, arranged by Wen-Hua Xu.
