Albuca
Albuca tenuifolia
Albuca is a plant genus of the family of asparagus plants ( Asparagaceae ). The botanical name of the genus derives from the Latin word for albucus, asphodel ' and refers to the resemblance of some species with asphodel.
Description
The species of the genus Albuca are perennial, zwiebelige geophytes that grow with variable, below or above ground onions, which are spherical and rarely depressed - spherical in general. The ziegelig arranged onion scales are fleshy. Who appear before the flowers, feeding or rarely evergreen foliage leaves are designed very variable. They are arranged in rosettes, terete to flattened and straight or curved.
The inflorescence is racemose and the flowers shaft provided with pointed bracts. The upright flower stems are different lengths. The upright or nodding flowers are actinomorphic. Their six band-shaped tepals are green, white or yellow with a green center strip. The three outer tepals spread are not fused together. The inner tepals are drawn together like hood, covering the stamens and the ovary. They have a large terminal gland. Of the six stamens all fertile or the three outer are sterile. The stamens are widened at their base and cover the ovary. The elongated, movable anthers are intrors. The elongated, upper permanent ovary is dreifächrig, placentation central angle constantly. The stylus is inverted conical- prismatic, the stigma capitate or conical with three triangular fringed corners.
The fruits are ovate - triangular lokulizide capsule with three compartments. They contain flat, black and shiny seeds.
Systematics and distribution
The genus is widespread Albuca from Africa to Arabia. Its distribution focus is South Africa.
The first description was published by Carolus Linnaeus in 1762 in the second edition of Species Plantarum. The genus Albuca include the following types:
- Albuca abyssinica Jacq.
- Albuca acuminata Baker
- Albuca adlami Baker
- Albuca albucoides ( Aiton ) J.C.Manning & Goldblatt
- Albuca amboensis ( Schinz ) Oberm.
- Albuca amoena ( Batt ) J.C.Manning & Goldblatt
- Albuca anisocrispa Mart. - Azorin & M.B.Crespo
- Albuca annulata Mart. - Azorin & M.B.Crespo
- Albuca arenosa J.C.Manning & Goldblatt
- Albuca aurea Jacq.
- Albuca autumnula ( U.Müll. - Doblies & D.Müll. - Doblies ) JCManning & Goldblatt
- Albuca bakeri Mart. - Azorin & M.B.Crespo
- Albuca barbata ( Jacq. ) J.C.Manning & Goldblatt
- Albuca batteniana Hilliard & B.L.Burtt
- Albuca bifolia Baker
- Albuca bifoliata R.A.Dyer
- Albuca boucheri U.Müll. - Doblies
- Albuca bracteata ( Thunb. ) Goldblatt & J.C.Manning
- Albuca bruce - Bavarian - U.Müll. Doblies
- Albuca buchananii Baker
- Albuca canadensis (L.) F.M.Leight.
- Albuca candida ( Oberm. ) J.C.Manning & Goldblatt
- Albuca caudata Jacq ..
- Albuca chlorantha Welw. ex Baker
- Albuca ciliaris U.Müll. - Doblies
- Albuca clanwilliamae - gloria - U.Müll. Doblies
- Albuca collina Baker
- Albuca concordiana Baker
- Albuca consanguinea ( Kunth ) JCManning & Goldblatt
- Albuca cooperi Baker
- Albuca corymbosa Baker
- Albuca costatula ( U.Müll. - Doblies & D.Müll. - Doblies ) JCManning & Goldblatt
- Albuca cremnophila van Jaarsv. & A.E.van Wyk
- Albuca crinifolia Baker
- Albuca crispa J.C.Manning & Goldblatt
- Albuca crudenii Archibald
- Albuca dalyae Baker
- Albuca darlingana U.Müll. - Doblies
- Albuca decipiens U.Müll. - Doblies
- Albuca deserticola J.C.Manning & Goldblatt Albuca deserticola subsp. deserticola
- Albuca deserticola subsp. longipilosa ( U.Müll. - Doblies & D.Müll. - Doblies ) JCManning & Goldblatt
- Albuca paucifolia subsp. paucifolia
- Albuca paucifolia subsp. karooparkensis ( U.Müll. - Doblies & D.Müll. - Doblies ) JCManning & Goldblatt
- Albuca villosa subsp. villosa
- Albuca villosa subsp. glabra U.Müll. - Doblies
- Albuca virens subsp. virens
- Albuca virens subsp. arida ( Oberm. ) J.C.Manning & Goldblatt