Astrophytum capricorne (A. Dietrich) Britton et Rose
key to the varieties
key to the varieties
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Section Septentriastrophytum
fruits bursting at the base |
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-plants with curved spines
-flower-throat normal red to pale-orange -hypocotyl of the seedlings plump and greenish -plants normal with 8-ribs, adult seldom up to 11 ribs |
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| A. epidermis with numerous tufts of wool: flower-throat red to pale-orange |
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| -spines flexible, brown to black 1) -new tufts of wool white to mostly red-brown -adult growth columnar up to about 40 cm at about 18 cm in diameter |
capricorne (type) |
| -spines very strong, little flexible -new tufts of wool white to pale-yellow, body covered dense with tufts of wool -adult growth columnar up to about 40 cm at about 18 cm in diameter |
v. niveum |
| -spines thin, very flexible, turned around the body -new tufts of wool white to pale-yellow, body covered with few, fine tufts of wool -adult growth small, slender up to about 20 cm at about 12 cm in diameter |
v. minus |
| B. epidermis without or with few tufts of wool: | |
| B1. flower-throat red to pale-orange: | |
| -spines long, flexible, reddish to dark-brown, black 1) | v. senile |
| -spines long, flexible, pale-yellow to dark-yellow 1) | v. aureum |
| -spines very strong, less flexible 1) | v. niveum f. nudum 2) |
| B2. flower-throat pure yellow: | v. crassispinum |
| Gattung / genus Astrophytum |
| Astrophytum asterias |
| Astrophytum capricorne |
| Astrophytum coahuilense |
| Astrophytum myriostigma |
| Astrophytum ornatum |
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Sammlung Heinz Hoock
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2) The form is described under A. capricorne v. niveum