Friday, November 8, 2024

[Botany • 2024] Begonia laxiflora (Begoniaceae, sect. Platycentrum) • A New Species from Central Vietnam


Begonia laxiflora   

in Bui, Nguyen, M. T. Le, Nghiem, Uong, Truong, A. T. Le et Lin, 2024.   

Abstract
Begonia laxiflora is described as a new species endemic to Vietnam from granite boulder habitats in the Dakrong district. It is most similar to B. abbreviata in its creeping habit, broadly ovate leaves, persistent bracts, and the number of tepals in both staminate and pistillate flowers. The new species is different in its inflorescence having internodes much longer than the bracts (vs. internodes are hidden by the bracts), the outer tepals glabrous in both staminate and pistillate flowers (vs. sparsely scabrescent on the abaxial surface), ovary covered with minutely glandular trichomes (vs. hirsute) and the wings of the capsule distally pointed (vs. rounded).

Central Truong Son, Dakrong Nature Reserve, endemism, Quang Tri province, plant diversity, plant taxonomy, Eudicots


Begonia laxiflora sp. nov.



Van Thanh Bui, Khang Sinh Nguyen, Manh Tuan Le, Duc Trong Nghiem, Sy Hung Uong, Quang Trung Truong, Anh Tu Le and  Che Wei Lin. 2024. Begonia laxiflora (Begoniaceae), A New Species in sect. Petermannia from Central Vietnam.  Phytotaxa. 671(1); 98-104. DOI: doi.org/10.11646/phytotaxa.671.1.6