Inviato: Dom 04 Lug 2010, 19:29 Oggetto: Mammillaria hamiltonhoytea
maurillio Dom 04 Lug 2010, 19:29
Mammillaria hamiltonhoytea
n.b.
the original spelling is correct, althought it has frequently been altered to "hamiltonhoytae".
Reppanhagen mantaines this species (althought the plant he pictures does not have a purple flower), and adds the variety below.
Bravo in her latest work reduces it beneath m.obscura.
Hunt mantains his referral in previous pubblications to synonymy with m.gigantea, in spite of its purple flower, interpreting it "as a purple-flowered variant in the m.petterssonii - m.gigantea group."
it is significant that Craig described a yellowish-brown flowered variety (var. flavaflora), said to have the same distribution as the type, quoted as san moran.
referred to mammillaria petterssonii.
mammillaria - john pilbeam pag.328
 
Mammillaria hamiltonhoytea
L'ultima modifica di maurillio il Gio 31 Lug 2014, 21:56, modificato 2 volte
Reppenhagen ha creato una nuova combinazione, Mammillaria hamiltonhoytea (Bravo) Werdermann var. pilensis (Shurly).
Egli prende come base dalla sua collezione REP 800 da "Puerto Caroza, Guanajuato, broadly south of Pila".
BODY always solitary, cylindric, to 300mm. high (depressed globose, to 120mm. high);
CENTRAL SPINES 1-2, 6-20mm. long (1-4, 8-40mm. long);
FLOWERS uniformly brownish pink.
Hunt la considera essere correlata a Mammillaria gigantea e la fotografia di Reppenhagen sembra supportare questa idea.
 
Mammillaria hamiltonhoytea v. pilensis REP 800 Puerto Caroza, Guanajuato, broadly south of Pila - Mexico  
Mammillaria hamiltonhoytea v. pilensis REP 800 Puerto Caroza, Guanajuato, broadly south of Pila - Mexico  
Mammillaria hamiltonhoytea v. pilensis REP 800 Puerto Caroza, Guanajuato, broadly south of Pila - Mexico  
Mammillaria hamiltonhoytea v. pilensis REP 800 Puerto Caroza, Guanajuato, broadly south of Pila - Mexico
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