| | PALACI, CARLOS A. AND GREGORY K. BROWN.* (Site not responding. Last check: 2007-10-23) |
 | | All species of Catopsis (15 sp.) produce seeds with a dominant apical coma that is folded while in fruit, a morphology unique to the genus. |
 | | Ovule and seed development in selected species of Catopsis, Tillandsia, and Vriesea was studied with scanning electron and light microscopy in an effort to evaluate the generally assumed homology between the folded apical seed coma of Catopsis and the straight basal seed coma characteristic for almost all remaining Tillandsioideae. |
 | | The straight basal seed coma is formed by elongation of integumentary cells at the micropylar end of the ovule, whereas the folded apical seed coma on Catopsis seeds originates from the outermost layer of chalazal end integumentary cells which form distinctive multicellular hairs. |
| www.ou.edu /cas/botany-micro/bsa-abst/section13/abstracts/21.shtml (196 words) |