Abstract
Dispersed pollen grains of Lagenella martini from the Upper Triassic of Austria were studied by means of light, scanning and transmission electron microscopy. Pollen grains are medium-sized, monosulcate, finely striate with differently directed striations on distal and proximal surfaces. The aperture is usually broadly open with rounded ends. The ectexine is composed of a thick tectum, granular infratectum, and thin foot layer. The endexine shows fine lamellation in its outer part. Reported association of Lagenella martini with Stachyotaxus reproductive structures needs a more detailed investigation of the morphology and ultrastructure of the found pollen to make reliable conclusions. A comparison with known fossil and modern non-saccate striate pollen has shown that the studied pollen grains share a number of characters with some gymnosperms and angiosperms with most similarity to Vittatina-like pollen.
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