www.mobot.org Research Home | Search | Contact | Site Map  
 
Research
W³TROPICOS
QUICK SEARCH

MO PROJECTS:
Africa
Asia/Pacific
Mesoamerica
North America
South America
Floras
General Taxonomy
Photo Essays
Training in Latin
  America

MO RESEARCH:
Wm. L. Brown Center
Bryology
GIS
Graduate Studies
Research Experiences
  for Undergraduates

Imaging Lab
Library
MBG Press
Publications
Climate Change
Catalog Fossil Plants
MO DATABASES:
W³MOST
Image Index
Rare Books
Angiosperm
  Phylogeny

Res Botanica
All Databases
INFORMATION:
The Unseen Garden
What's New?
People at MO
Visitor's Guide
Herbarium
Jobs & Fellowships
Symposium
Research Links
Site Map
Search

Projects

Flora of the Venezuelan Guayana

<< Back

BIGNONIACEAE

30. PYROSTEGIA C. Presl, Abh. K–nigl. B–hm. Ges. Wiss. ser. 5, 3: 523. 1845.

Lianas, the branchlets subangulate with 6-8 inconspicuous ribs, without interpetiolar glandular fields; pseudostipules small and inconspicuous. Leaves 2-foliolate, often with a trifid tendril. Inflorescence a terminal or axillary panicle. Calyx cupular, truncate, minutely 5-denticulate, ± glandular-lepidote; corolla orange-red, narrowly tubular-funnel-shaped. Stamens exserted, the anthers glabrous. Ovary linear-tetragonal, lepidote; disk annular-pulvinate. Fruit a linear, compressed capsule, the valves compressed parallel to the septum, smooth, the median vein ± raised. Seeds thin, 2-winged, the wings brown with hyaline margins.

Southern Colombia, Venezuela, Guyana, Peru, Brazil, Bolivia, Paraguay; 4 species, 1 in Venezuela.

Pyrostegia dichotoma Miers ex K. Schum. in Engl. & Prantl, Pflanzenfam. 4(3b): 223. 1894. -Barqui.

Liana. Nonflooded evergreen lowland forests, 50-400 m; Delta Amacuro (Serranía de Imataca), northern Bolívar, scattered in western Amazonas. Colombia, Guyana, Suriname, Peru, Brazil, Bolivia. Fig. 408.

The orange-red, hummingbird-pollinated flowers are narrow and very distinctive.

TOP

Scientific Comments:
Paul Berry (peberry@facstaff.wisc.edu) or Kay Yatskievych (kay.yatskievych@mobot.org).

 
 
© 1995-2014 Missouri Botanical Garden, All Rights Reserved
P.O. Box 299, St. Louis, MO 63166-0299
(314) 577-5100

E-mail
Technical Support