Thelocactus lausseri


Scanning electron microscope micrographs of Thelocactus lausseri seeds. Seeds are medium-sized, with the longest axis of 1,6 mm and a diameter of 1,4 mm. The hilum-micropylar border is expanded around and constricted above the hilum. The micropyle lies onto the hilum border. Anticlinal boundaries are raised and straight. Outer periclinal walls are low domed with a verrucose surface.


lausseri seed

Thelocactus lausseri
(40x) Photo: A. Mosco


  lausseri seed

Thelocactus lausseri
(320x) Photo: A. Mosco


lausseri seed

Thelocactus lausseri
The hilum-micropylar region with the micropyle set on the hilum rim.
(640x) Photo: A. Mosco