Thursday, August 16, 2018

[Botany • 2016] Billolivia cadamensis (Gesneriaceae) • A New Species from central Vietnam


Billolivia cadamensis Q. D. Nguyen, N. L. Vu & H. T. Luu

in Nguyen, Dinh, Nguyen, Vu & Luu, 2016.

 ABSTRACT
 A new species, Billolivia cadamensis Q. D. Nguyen, N. L. Vu & H. T. Luu, sp. n. of the family Gesneriaceae is described from Quang Ngai Province, central Vietnam. The new taxon is close to B. tichii but differs in shorter stem, abaxially glabrous bracts, calyx divided into 5 lobes to base, outside pubescent apical half of corolla tube, oblong or deltoid corolla lobes, dense hairs on apical 3/4 of the ovary and white corolla lobes. A key to all already known species from Billolivia of Vietnam is given.

Keywords: Gesneriaceae, Billolivia, new species, Vietnam.


   



Figure 1. Billolivia cadamensis Q. D. Nguyen, N. L. Vu & H. T. Luu, sp. n. 
A. Habit. B. Petioles. C. Abaxial lamina. D. Adaxial lamina. E. Inflorescence. F. Corolla lobes. G. Calyx. H: Longisection of corolla. I. Disc, ovary and style.  J. Cross section of ovary. K. Fruit. L. Cross section of fruit. 
Photos: Nguyen Quoc Dat and Nguyen Hieu Cuong. 
Design: Luu Hong Truong.

Billolivia cadamensis Q. D. Nguyen, N. L. Vu & H. T. Luu, sp. n.

Allied to B. tichii in general appearance but different in having much shorter stem, glabrous bracts, calyx divided into 5 lobes to base, outside pubescent apical half of corolla tube, oblong or deltoid corolla lobes, dense hairs on apical 3/4 of the ovary and white corolla lobes.

Etymology: Named after the location (Ca Dam Mountain) where the new species was found.
Proposed Vietnamese name: Lưu hoa cà đam.


Nguyen Quoc Dat, Dinh Nhat Lam, Nguyen Hieu Cuong, Vu Ngoc Long and Luu Hong Truong. 2016. Billolivia cadamensis (Gesneriaceae), A New Species from central Vietnam. Tap chi Sinh hoc. 38(4); 492-496. DOI: 10.15625/0866-7160/v38n4.8837

    

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