Echinocactus pottsianus Poselger, Allg. Gartenz., 21: 107, 1853
Beschreibung:
Allgemeine Gartenzeitung, 21: 107, 1853
Echinocactus Pottsianus mihi - M. Pottsii Salm.
Wird selten über 2 Zoll hoch bei 1 Zoll Durchmesser. Die Höcker sind warzenartig, stehen gedrängt
und sind auf der oberen Seite gefurcht. Areolen gelb. Randstacheln viele, weiß. Centralstacheln 6-12,
an der Basis weiß, an der Spitze rothbraun, die oberen die längsten etwa 1/2 Zoll lang. Blüthen
verhältnißmäßig sehr groß. Blumenblätter schmal, grünlich-weiß, in der Mitte mit einem rosenrothen
Streifen. Beeren blaß rosenroth.
Auf den Bergen bei Guerrero am Rio grande.
Poznámka/Bemerkung/Note:
1 Zoll = 2,634 cm
Britton et Rose
Notes of 99. Neomammillaria pottsii (Scheer) Britton et Rose
The Cactaceae, 4: 137-138, 1923
In the Engelmann Collection, now in the Missouri Botanical Garden, is a specimen
labeled “Mammillaria pottsii vera—original coil. Dyck. Jan. 1857.” This proves to be identical
with the plant well known in our collections as M. leona. With specimens of this
plant in hand Salm-Dyck’s description, which heretofore we had not understood, is clearly
interpreted, except that he states that the tubercle is slightly sulcate above. From the fact
that Engelmann says that his specimen is “M. pottsii vera” we suspect that he may have
had a plant like M. tuberculosa mixed with it. This seems to have been Poselger’s idea, for
he refers the plant to Echinocactus, doubtless on account of this supposed groove. The plant
which Poselger describes under Echinocactus pottsianus, collected at Guerrero, south of the
Rio Grande, is very different from Salm-Dyck’s plant; his fragment, also deposited in the
Missouri Botanical Garden, consists of a fruit, a few brownish seeds, and a spine-cluster,
one attached to the top of a grooved tubercle, and is to be referred to Escobaria tuberculosa,
or a related species. The specimen is too fragmentary to identify definitely. Poselger’s misunderstanding
of Salm-Dyck’s plant left the way open for his species, Mammillaria leona,
described shortly afterwards.
© 2002-2007 Jan Mynar
Last modified September 8, 2007