Boraginaceae - the Borage Family
Diversity: Shrubs, trees and - especially in our flora - herbs in about 100 genera and 2,000 species.
Distribution: Worldwide, but with greatest diversity in the Mediterranean basin. We have 19 genera and 74 species in the Texas flora.
This family carries the distinctive gynoecium of the Lamiales.
The ovary shows a second septum, producing 4 locules and each
these has only a single seed. The pericarp is formed around each
seed and, as a result, the gynoecium shows a 4-lobed aspect with a
at the center. The syle is therefore not attached to the top
of the ovary, but rather in this central area. This unusual
knows as a gynobasic style, is
present in the Lamiaceae. However, in contrast to the
two families of the Lamiales, the Boraginaceae shows three
features: actinomorphic corolla,
leaves and a terete stem.
Also, as depicted below, many species of this family
an inflorescence that uncurls as it develops - the helicoid
or scorpiod cyme. It is also
for flowers of the Boraginaceae to show a series of 'bumps' - termed
- at the throat of the corolla and a rough, bristly pubescence.
||Symphytum officinale - common comfrey - overview from Otto Wilhelm Thomé's - Flora von Deutschland Österreich und der Schweiz (1885 - 1905) and photo of inflorescences (right)|
Local Endemic - Onosmodium bejariense
More information on the Boraginaceae