Related Experiment Video
Updated: Sep 14, 2026

Asymbiotic Germination and Leaf Explant-Based Regeneration of the Endangered Medicinal Orchid Hemipilia cucullata from Mature Seeds
Published on: September 19, 2025
Vincetoxicum phucanhense (Apocynaceae, Asclepiadoideae), a new species from Vietnam
Thi Thanh Huong Nguyen1,2, Ngoc Han Le1, Duc Binh Tran1
1Institute of Biology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Nghia Do, Ha Noi, Vietnam Institute of Biology, Vietnam Academy of Science and Technology Ha Noi Vietnam https://ror.org/02wsd5p50.
Abstract:
Vincetoxicum phucanhense (Apocynaceae, Asclepiadoideae), a new species from Vietnam, is described, illustrated, and compared with three morphologically similar species: Vincetoxicum flexuosum (R.Br.) Kuntze, V. harmandii (Costantin) Meve & Liede, and V. tengii (Tsiang) Meve & Liede. V. phucanhense differs from V. flexuosum in having shorter pedicels, very sparsely hairy sepal margins (vs. glabrous), a larger corolla, broadly elliptic pollinia (vs. globose), longer fruits, and longer seeds. It also differs from V. harmandii in having shorter petioles, smaller leaf blades, glabrous adaxial leaf surfaces (vs. hairy), and a larger corolla. In comparison with V. tengii, V. phucanhense can be distinguished by its larger corolla, corolla coloration (yellow, pink, or red vs. greenish), and broadly elliptic pollinia (vs. globose). A key to the 14 species of Vincetoxicum recorded in Vietnam is provided.
More Related Videos
10:23A Concoction Pipeline for Generating Molecular Operational Taxonomic Units (MOTUs) Among Riparian and Aquatic Beetles
Published on: July 11, 2025
09:31In Vivo Leaf Inoculation: An Alternative Method to Assess the Disease Resistance of Hybrid Clones in Poplar Breeding of Stem Canker Disease
Published on: September 20, 2024
Related Concept Videos
Fungal Phylum Ascomycota
Epiphytes, Parasites, and Carnivores
Seedless Vascular Plants
Non-vascular Seedless Plants
Adaptations that Reduce Water Loss
Tonicity in Plants