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CCDB → Angiosperms → Xanthorrhoeaceae → Haworthia → Haworthia umbraticola var. hilliana (Poelln.) Poelln.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Haworthia umbraticola var. hilliana (Poelln.) Poelln. | Haworthia cymbiformis var. obtusa (Haw.) Baker | 14 | IPCN73-74 | BRANDHAM, P.E. 1973. Chromosome of the Liliaceae: III. New cases of interchange hybridity in the Aloineae. Kew Bull. 28: 341-348. |