Villadia
Villadia batesii
Villadia is a genus of flowering plants in the family Crassulaceae ( Crassulaceae ). The botanical name of the genus honors the Mexican physician and naturalist Manuel Maria Villada ( 1841-1924 ).
Description
The species of the genus Villadia are bald perennial herbaceous plants or small shrubs with thickened - spindle-shaped or fibrous roots. You can reach heights of growth of 5 to 60 (rarely 90) cm and branch out from the bottom to the middle of plenty. For species growing as small shrubs, the shoots are usually upright and largely lignified and persistent. The cushion -forming species the shoots are herbaceous, woody only at the base and more or less decumbent - ascending. The alternate arranged foliage leaves are usually somewhat spread to ascending and slightly elongated shape to linear. They are usually somewhat terete, subulate and straight, pointed or blunt and spurred more or less clearly at the base. Their most bare, and more or less green leaf blade is 6 to 23 mm long ( often 3 to 40 mm) and 1.5 to 3 mm wide ( often 1 to 15 millimeters).
The more or less upright inflorescence is a spike, raceme or mostly Thyrse and is 2 to 20 (rarely 40) inches long. The flowers are fünfzählig (rarely cruciform ) and obdiplostemon. Your flower stems are almost absent or very short. The mostly green, almost free, most nearly equal sepals ascending spread to something more or less oblong lanceolate or oblong ovate, obtuse or acute. The corolla is variously shaped, often five edges of the base and diameter reached 3-9 mm. The mostly white to pink petals are often keeled, more or less ovate to elliptic -oblong and dorsally. They are 3 to 6 mm ( exceptionally up to 9 mm) long and 1.2 to 2 millimeters (rare to 3 mm) wide. The flower tube is 0.5 to 1.6 mm (rarely to 4 millimeters ) long.
The fruit is a follicle. The contained more or less brown seeds are slightly screw shaped. Your seed coat is centrally - papillose.
Systematics and distribution
The genus Villadia, is common in the southern United States in Mexico, Guatemala and Peru, where they grow in mountain and highland regions mainly on rocky sites. The first description took Joseph Nelson Rose 1903 before. After Joachim Thiede the genus Villadia of the species:
- Villadia acuta Moran & C. H. Uhl
- Villadia albiflora ( Hemsl. ) Rose
- Villadia aperta Moran & C. H. Uhl
- Villadia aristata Moran
- Villadia cucullata Rose Villadia cucullata subsp. apiculata
- Villadia cucullata subsp. cucullata
Other species that are recognized by other authors, are:
- Villadia batesii ( Hemsl. ) Baehni & J. F. Macbr. ; Home: Mexico
- Villadia guatemalensis Rose; Home: Guatemala.