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Wang, Y.-Z.; Li, Z.-Y.

doi:10.1007/s00606-002-0234-9

Cited by 8 publications

(1 citation statement)

References 7 publications

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“…The development of pair-flowered cymes shows that the main axis of the inflorescence has a true terminal flower and a front flower. Two lateral paraclades arise in the axils of two opposite lateral bracts below the terminal flower, the following branches continuously repeat the same pattern (Weber, 1978; Weber, 1982; Weber, 2013; Wang & Li, 2002; Li & Wang, 2004). This new species has an inflorescence morphology unlike any other described Primulina species to date.…”

Section: Discussionmentioning

confidence: 97%

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Hong

Keene

Qiu

et al. 2019

PeerJ

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A new Primulina species from Guangdong, China with an unusual inflorescence is described here. Primulina anisocymosa is vegetatively most similar to P. bobaiensis. It can be distinguished from all species within Primulina morphologically by its unique zigzag monochasial cyme and infructescence. To confirm the phylogenetic relationships and generic placement of this species, not only morphological anatomical features but also chromosome and DNA sequence data were examined and analysed here. Two samples from different populations identified as Primulina anisocymosa are monophyletic and were nested in a monophyletic clade within Primulina with high branch support. The somatic chromosome number of the new species is also reported (2n = 36), supporting its placement in the genus.

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Section: Discussionmentioning

confidence: 97%

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Hong

Keene

Qiu

et al. 2019

PeerJ

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Origin and phylogenetic relationships of the Old World Gesneriaceae with actinomorphic flowers inferred from ITS and trnL-trnF sequences

Wang

Liang

Wang

et al. 2010

TAXON

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The phylogenetic placement of the Old World Gesneriaceae genera Ramonda, Conandron, Bournea, Thamnocharis, and Tengia, all characterized by actinomorphic flowers, has been the subject of much debate. Actinomorphy in Gesneriaceae is rare, with most species exhibiting zygomorphic flowers. The actinomorphic genera have historically been considered “primitive” and lumped in the tribe Ramondeae separate from the remaining Old World Gesneriaceae. In this study, we used nuclear (ITS) and plastid (trnL‐F) DNA for molecular phylogenetic analysis of these five genera along with representative species across the Cyrtandroideae. Our results show that the actinomorphic genera are scattered over several otherwise zygomorphic clades within Cyrtandroideae, and along with previous data, indicate that Ramondeae is an unnatural group. Floral actinomorphy has evolved convergently in different alliances of Old World Gesneriaceae. Ramonda is sister to Haberlea, Bournea is apparently paraphyletic, Conandron seems rather isolated, and Tengia is close to Petrocodon and sister to a group of Chirita sect. Gibbosaccus together with Calcareoboea. We hypothesize that the evolution from zygomorphy to actinomorphy with novel combinations of characters is possibly due to shifts in pollination strategies, such as a switch from nectar‐ to pollen‐rewards.

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Recent progress in systematics in China

2006

Progress in Botany

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Untitled

Cited by 8 publications

References 7 publications

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Primulina anisocymosa(Gesneriaceae), a new species with a unique inflorescence structure from Guangdong, China

Origin and phylogenetic relationships of the Old World Gesneriaceae with actinomorphic flowers inferred from ITS and trnL-trnF sequences

Recent progress in systematics in China

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