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Mammillaria tonalensis

 
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maurillio
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Messaggio Inviato: Lun 23 Gen 2012, 18:09   Oggetto: Mammillaria tonalensis
maurillio Lun 23 Gen 2012, 18:09
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No. 67 MAMMILLARIA TONALENSIS
Original reference: D.R. Hunt, The Cactus and Succulent Journal of Great Britain 41, 103 (1979)
Body: Freely clustering and offsetting from fibrous roots, the stems erect or decumbent, slender cylindrical, to 12cm, or more in length and 2-2.5cm. in diameter.
Tubercles: Short and obtusely terete-conic, about 5mm, long and 8mm broad at the base, light green, with watery sap, set in three and five spirals.
Axils: Naked or with slight wool.
Areoles: Sparsely woolly.
Spines: Radial spines, 9-12, up to 1cm long, acicular, straight, chalky white, the upper tipped chestnut brown. Central spines, 1, porrect, up to 18mm. long, acicular, hooked, smooth, chestnut brown at first but becoming almost black.
Flowers: Funnel-shaped, about 1.5cm, long and 10-12mm, wide when fully open.
Outer perianth segments brownish-pink; inner perianth segments
narrowly oblong-linear, about 1.5mm. wide, carmine, with whitish
margins.
Fruit: Not known
Seed: Not known,
Type locality: Puente de Tonal a, Oaxaca, Mexico, on steep limestone rocks, lightly covered with bushes and with M.carnea and a plant allied to M.dixanthocentron.
Distribution: At present it is known only at the type locality,
Notes: This species was first collected by Herr Reppenhagen, on 17th
October 1974 and, prior to its official description, bore his field
number 522, It was later collected by Dr, Lau at the same locality
and given his number 1114. It is clearly allied to M.sphacelata and
David Hunt has included it in his Series Sphacelatae. As yet it is
very uncommon in cultivation and seed has not been available. However, it should be easy to propagate vegetatively and as the species is clustering there is reasonable hope that reasonable numbers of plants will soon be forthcoming. Like M.sphacelata and M.kraehenbuehlii, another related species, it should not prove difficult to grow. On the debit side, it may also follow them in being rather reluctant to flower.

  Mammillaria tonalensis
Collezione "Ento" Ennio Toso - Savona
Mammillaria tonalensis   Mammillaria tonalensis
Collezione "Ento" Ennio Toso - Savona
Mammillaria tonalensis



L'ultima modifica di maurillio il Dom 27 Set 2015, 15:16, modificato 6 volte
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maurillio
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Registrato: 21/01/10 09:17
EtÓ: 65
Messaggi: 5472
Residenza: Modena

Messaggio Inviato: Gio 09 Apr 2015, 18:15   Oggetto:
maurillio Gio 09 Apr 2015, 18:15
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Nella mia, ma anche in altre collezioni ho riscontrato Mammillaria tonalensis "reclutant to flower",
nonostante mi trovassi di fronte a piante anche di notevoli dimensioni ed etÓ....

  Mammillaria tonalensis
Mammillaria tonalensis   Mammillaria tonalensis
Mammillaria tonalensis



L'ultima modifica di maurillio il Dom 11 Mar 2018, 12:10, modificato 1 volta
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maurillio
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Registrato: 21/01/10 09:17
EtÓ: 65
Messaggi: 5472
Residenza: Modena

Messaggio Inviato: Dom 27 Set 2015, 15:19   Oggetto:
maurillio Dom 27 Set 2015, 15:19
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Una piccola referenziata dalle semine di Mr. Chris Davies...

  Mammillaria tonalensis REP 874
Tonala Pueblate, 1150m - Oaxaca - Mexico
Mammillaria tonalensis REP 874

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