Astrophytum ornatum (DC.) F.A.C. Web. ex B&R
key to the varieties
key to the varieties
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Section Austrastrophytum
fruits splitting starlike on the top |
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-plants with rigid, pungent spines
-flowers pure yellow -hypocotyl of the seedlings slender and reddish -plants normal with 8 ribs, adult up to 11 ribs -epidermis of young plants covered with white tufts of wool -adult plants complete or nearly complete without tufts of wool |
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| -growth columnar, up to about 180 cm at 22 cm diameter -spines at the apex yellow, later brown, black |
ornatum (Typ) |
| -growth solidly, up to about 70 cm at 32 cm diameter -spines of young plants pale yellow -young plants still more dense covered with white tufts of wool |
v. mirbelii |
| not valid varieties: | |
| -adult wanting white tufts of wool the variety is not valid because there exists no reproductive population in nature and all adult A. ornatum are nearly without white tufts of wool ore completely wanting tufts of wool 1) |
v. glabrescens |
| Gattung / genus Astrophytum |
| Astrophytum asterias |
| Astrophytum capricorne |
| Astrophytum coahuilense |
| Astrophytum myriostigma |
| Astrophytum ornatum |
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collection Heinz Hoock
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