| Publication Type: | Journal Article |
| Year of Publication: | 1971 |
| Authors: | Manitz |
| Journal: | Feddes Repertorium |
| Volume: | 82 |
| Pagination: | 167-181 |
| Keywords: | Maripa, Mouroucoa, pollen |
| Abstract: | Suggested by a previous communication on the occurrence of two types of apertures among the pollen grains of Maripa s. l. (Convolvulaceae), 16 species of this genus were investigated palynologically. 3-zonocolpare grains mixed with 4--6-pantocolpate and 6--15-pantocolpate grains were found. The structure of the exine (infractectale bacula with or without supratectale processes) reveals further differences. The combination of these characters in the genus Maripa offers the separation into four types of pollen grains. The genus Mouroucoa is represented by its own type. These facts stress the necessity of the generical separation of the two genera. Consideration of pollen morphology yields some new aspects for subdivision of the genus Maripa. |
| Alternate Journal: | Feddes Repert. |