The Eckman grab was very effective for sampling silt sediments, where only occasionally small Dreissena druses
The outer mesocarp is formed of spongy parenchyma with druses
and collateral vascular bundles.
The Arab representation shall consist of Moslems, Christians, and Druses
in proportion to their numbers in the Arab population.
The Prime Minister greeted the Pope on behalf of all the citizens of Israel: Jews, Christians, Muslims, and Druses
Although adult zebra mussels occasionally detach their byssus and crawl, large druses
and aggregations are usually quite stable, and adults are unlikely to move far.
are reported for Gunnera herteri by Mattfeld (1933).
The disadvantage of this method is that zebra mussels can move, form druses
or be consumed by predators, making it difficult to follow individuals through time.
1954) as druses
(clustered crystals of calcium oxalate), but X-ray and
Prismatic crystals and druses
are the most common types of oxalate crystals present in Cactoideae.
Along with raphides, druses
and crystal sand occur nearly universally.