Buddleja simplex

Buddleja simplex
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Lamiales
Family:	Buddlejaceae
Genus:	Buddleja
Species:	B. simplex
Binomial name
Buddleja simplex Kraenzl.
Synonyms
Buddleja saltillensis Kraenzl.

Buddleja simplex is probably extinct, as no record of it has been made for nearly 200 years. It was a species endemic to Saltillo in Mexico, described and named by Kraenzlin in 1912.^{[1] [2]}

Description

B. simplex is a small shrub, the young branches subquadrangular with adpressed tomentum. The small, membranaceous oblong-elliptic or oblong-lanceolate leaves have 0.5 – 1.5 cm petioles, and are 2 – 4 cm long by 0.5 – 1.2 cm wide, tomentulose above, tomentose below. The bracted inflorescences are 5 – 10 cm long, comprising 8 – 10 pairs of sessile or pedunculate heads < 0.6 cm in diameter. ^[2]

The species is considered very close to B. sessiliflora, the latter having marginally larger flower heads and longer fruits. ^[2]

References

1. Kraenzlin, F. W. L. (1912). Ann. Naturhist. Mus. Wien 26: 396, 1912
2. Norman, E. M. (2000). Buddlejaceae. Flora Neotropica 81. New York Botanical Garden, USA