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D. gemmatus Huang (1978) D. khasiensis Kumar (1995) D. lusaticus Krutzsch (1959) D. taiwanensis Shaw (1999)

DROSERAPOLLIS is a genus of extinct plants in the family Droseraceae . It is a form taxon known only from fossil pollen .

Droserapollis pollen grains are united in tetrahedral tetrads (groups of four). Individual grains are possibly porate-like. The exine is mixed with gemmate and short baculate processes, whereas the sexine is granulate.

Poorly preserved pollen of D. gemmatus has been found in the Miocene Yutengping Sandstone of Taiwan
Taiwan
, whereas that of D. khasiensis originates from the Paleocene Lakadong Sandstone of Laitryngew , Khasi Hills , Meghalaya , India
India
. In addition, palynomorphs from Germany have also been assigned to the genus.

Droserapollis pollen matches that of extant Drosera
Drosera
in morphology. The tetrads of D. gemmatus are 53–56 µm in deter. Individual grains are prolate and measure 35–40 by 25–26 µm. The exine is 1.5–2.4 µm thick, with 1–2 µm long gemmae or bacula.

REFERENCES

* ^ A B Krutzsch, W. 1970. Zur Kenntnis fossiler disperser Tetradenpollen. Paläontologische Abhandlungen Abteilung B, Paläobotanik 3(3): 399–433. * ^ A B C D Huang, T.-C. 1978. " Miocene
Miocene
palynomorphs of Taiwan. II. Tetrad grains." (PDF). Botanical Bulletin of Academia Sinica 19: 77–81. * ^ Degreef, J.D. 1989. "Early history of Drosera
Drosera
and Drosophyllum." (PDF). Carnivorous Plant
Plant
Newsletter 18(3): 86–89. * ^ Kumar, M. 1995. Pollen tetrads from Palaeocene sediments of Meghalaya, India: comments on their morphology, botanical affinity and geological records. Palaeobotanist 43(1): 68–81. * ^ Saxena, R.K. ">(PDF). Birbal Sahni Institute of Palaeobotany, Lucknow. * ^ Song, Z.-C., W.-M. Wang 2

* v * t * e

Carnivorous and protocarnivorous plants

Carnivorous genera († extinct)

* Aldrovanda * † Archaeamphora * Brocchinia * Byblis * Catopsis * Cephalotus
Cephalotus
* Darlingtonia * Dionaea * Drosera
Drosera
* † Droserapites * †Droserapollis * † Droseridites * Drosophyllum * † Fischeripollis
Fischeripollis
* Genlisea * Heliamphora
Heliamphora
* Nepenthes * † Palaeoaldrovanda * Philcoxia * Pinguicula * Roridula * Sarracenia * † Saxonipollis * Triphyophyllum * Utricularia

PROTOCARNIVOROUS GENERA

* Aracamunia * Capsella * Colura * Dipsacus
Dipsacus
* Drymocallis * Geranium * Ibicella
Ibicella
* Lathraea * Paepalanthus * Passiflora * Plumbago * Proboscidea * Stylidium

SEE ALSO

* International Carnivorous Plant
Plant
Society * Insectivorous Plant
Plant
Society *