No. 16. Mammillaria meyranii
Original reference;- Helia Bravo Hollis,, Cactus and Succulent Journal of Great Britain, Volume 18, page 84, 1956.
Body: Simple, producing new heads at the base, columnar, very long, 5 - 55 cm. long by 4 - 5 bin. wide, apex rounded and covered by the spines, semi-milky sap.
Tubercles in 13 and 21 spirals, small, 8 mm. long and 2 - 3 mm. wide, conical and somewhat tetrangular at the base, green with a
yellowish tinge.
Axils of younger tubercles with scant white wool, but without bristles or hairs.
Areoles oval, 2 mm. long with some white wool in youth.
Spines: Radials 17 - 19, acicular, straight, 3 - 6 mm. long, lower ones longer, horizontal, radiating, white with yellowish base, at first yellowish red with brown tip.
Centrals 2, divergent, one pointing upward and the other inclined downward, acicular, 1 cm. long or less, those at the apex of the
plant orange yellow with chestnut tip, the others dirty white or greyish.
Flowers: Funnel shaped, appearing in. a crown around the apex, 18 .mm. long including ovary. Outer perianth segments lanceolate, acuminate, margins ciliate, purplish brown. Inner perianth segments linear lanceolate, purple; filaments White, anthers cream, style white, somewhat curved, stigma lobes 5 - 7, green, nectar region somewhat striated, perianth tube short.
Fruit: Clavate, somewhat curved, 2 cm. long and 5 mm. thick at its widest part, light purplish rose with brownish-green tinge; at times there is a very small scale hear the tip, aromatic.
Seeds 1 mm. long, pyriform, light brown, shiny, with cellular depressions very irregularly quadrangular and rims provided with thin intercellular grooves; hilum basal lateral, micropyle pore near hilum.
Distribution: South western part of State of Mexico, near the Santa Barbara plant of the "Miguel Aleman" Hydroelectric System.
Type: Collected in the region mentioned and deposited in the herbarium of the Instituto de Biologia of the University of Mexico, No. 3876.
From "The Journal of the Mammillaria Society" Vol.1 n.6 - October 1961
Rispetto a questa descrizione, risulta chiaro che le centrali colorate sono in molti casi in numero superiore a due. (ndM)
Mammillaria meyranii ESP 7/51
S. Nicolas - Mexico State
Mammillaria meyranii ESP 7/51
S. Nicolas - Mexico State
Mammillaria meyranii ESP 7/51
S. Nicolas - Mexico State
Mammillaria meyranii ESP 7/51
S. Nicolas - Mexico State
L'ultima modifica di maurillio il Lun 21 Nov 2022, 19:05, modificato 8 volte |
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