Kimnachia S. Arias & N. Korotkova

Ruiz-Dominguez, Catalina, Vovides, Andrew P. & Sosa, Victoria, 2019, Systematic relevance of pollen morphology in tribe Hylocereeae (Cactaceae), PhytoKeys 128, pp. 121-140 : 126

Kimnachia S. Arias & N. Korotkova

Pollen.

pantocolpate, radially symmetrical, isopolar with circular contour in polar view. Shape: prolate-spheroidal (P/E=1.07). Apertures: 15, brevicolpate, very large; polar area small (PAI=0.05). Measurements: pollen grains medium-sized to large, (43.95)49.14(55.73) × (48.04)52.45(58.32) μm in equatorial view; exine thickness (3.10)3.84(4.74) μm. Ornamentation: smooth surface with tectum perforate, ornated with spinules of (0.19)0.33(0.43) μm length × (0.34)0.45(0.55) μm diameter in base; perforations (0.09)0.18(0.35) μm in diameter ( Figure 4G ).

Species examined.

Kimnachia ramulosa (Salm-Dyck) S. Arias & N. Korotkova (Guatemala, Suchitepéquez. L. Velásquez et al. 4884 BIGU).

Figures

Figure 4. Pollen grains of tribe Hylocereeae (Scanning Electron Microscope photographs). A-D: Left polar view, right equatorial view A S. undatus (C. Ruiz et al. 560) B Weberocereus tunilla (C. K. Horich BGA 58344) C S. setaceus (H. Bravo et al. 2755). D-J: left polar view, left details of spinules and perforations D S. megalanthus (C. Ruiz et al. 563) E S. stenopterus (C. K. Horich s. n.) F S. triangularis (C. Gomez-Hinostrosa 2110) G Kimnachia ramulosa (L. Velasquez et al. 4884) H Pseudorhipsalis amazonica (E. Gudino 145) I S. alliodorus (A. Ruiz Velazco et al. 86) J S. glaber (C. K. Horich BGA 57239).