Accepted Scientific Name: Mammillaria polythele cv. Stachellos
(forma inermis, sin pico)
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Valentino Vallicelli
Theis cultivar looks a bit like a green pine cone with few or no spines. The apex is clothed in white wool. The pinkish purple flowers come in large numbers from spring to late summer.
Origin and Habitat: Garden origin (Nursery produced cultivar)
Synonyms:
See all synonyms of Mammillaria polythele
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Accepted name in llifle Database:Mammillaria polythele Mart.Hort. Reg. Monac. (1829) 127, nomen; et in Nov. Actorum Acad. Caes. Leop.-Carol. German. Nat. Cur. 16(1): 328, pl. 19 328 1832.Synonymy: 24
Accepted name in llifle Database:Mammillaria polythele subs. durispina (Boed.) D.R.HuntMammillaria Postscripts 6: 7 7 1997Synonymy: 6
Accepted name in llifle Database:Mammillaria polythele subs. obconella (Scheidw.) D.R.HuntMammillaria Postscripts 6: 7 7 1997Synonymy: 5
Cultivars
(1):
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Description: Mammillaria polytheleSN|20666]]SN|20666]] cv. Stachellos (spineless form) is a solitary, columnar upright-growing cultivars, usually erect but sometimes sprawling that looks a bit like a green pine cone, stem blue green with latex up to 8-10 cm in diameter, 30-40 (60) tall. Tubercles Prominent, globular conical clothed in white wool with few or no spines.
Flowers: Many rose to pinkish purple irregularly distributed near crown, up to 10 mm long, 12 mm in diameter, with a very long flowering time from spring to summer, Fruit: Club shaped, red.
Remarks: A rare peculiarity of this plant is that the flowers are produced either from the axil and from the apex of the tubercles too.
Subspecies, varieties, forms and cultivars of plants belonging to the Mammillaria polythele group
Mammillaria ingens Backeb.: has solitary stems up to 40 cm tall and 15 cm in diameter. Distribution: Biosphere Reserve of Barranca de Metztitlán, Hidalgo, Mexico.- Mammillaria kewensis Salm-Dyck: has 3 to 6 spine, somewhat spreading, brown with dark tips. Distribution: Querétaro, Guanajuato, Hidalgo.
- Mammillaria polythele Mart.: (subsp. polythele) has stems 8-10 cm in diameter and only 2 spines at first, later 3-4. Distribution: Hidalgo, Guanajuato, and Queretaro.
- Mammillaria polythele subs. durispina (Boed.) D.R.Hunt: has stems 5-6 cm in diameter and 6-8 radiating spines that vary in length to 15 mm. Distribution: Guanajuato and Queretaro.
- Mammillaria polythele subs. obconella (Scheidw.) D.R.Hunt: has stems up to 15 cm in diameter and 4 unequal spines arranged like a cross c. 2 cm long, ± equal, somewhat recurved, yellowish at first, later grey. Distribution: Barranca de Venados and near Metzquititlan, Hidalgo.
- Mammillaria polythele cv. Stachellos hort.: has a blue-green pinecone like, stem up to 8-10 cm in diameter, 30-40 cm tall. Tubercles Prominent, globular conical clothed in white wool with few or no spines.
Notes: Stachellos is German for 'without spines'
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Diego Armentano
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Valentino Vallicelli
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Cactus Art
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Diego Armentano
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Alexander Arzberger
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Cactus Art
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Valentino Vallicelli
Mammillaria tulensis cv. stachellos (Mammillaria polythele cv. Stachellos) Photo by: Valentino VallicelliCultivation and Propagation: equires excellent drainage provided by porous cactus soil. We suggest repotting every 2-3 years. Prefers bright light and ample airflow. Outside full sun or afternoon shade, inside it needs bright light, and some direct sun. Water the soil abundantly when it is dry to the touch. Allow soil to drain thoroughly before watering again. Do not water much in the winter (Rot prone). Protect from frost. But it's hardy to -5°C if kept dry. During the beautiful season enrich the soil using a fertilizer rich in potassium and phosphorous, but poor in nitrogen, because this chemical element doesn’t help the development of succulent plants, making them too soft and full of water.
Propagation: Direct sow after last frost as it usually don't braches.
