1) Fungus genus 2) Genus pluteus 3) Roof mushroom 
Pluteus is a large genus of fungi with over 300 species. They are wood rotting saprobes with pink spore prints and gills that are free from the stem. Pluteus means shed or penthouse. ==Characteristics of the genus == Pluteus is separated from Volvariella due to the lack of a volva, and from Entoloma by growing on wood and by microscopic features (...
• (n.) The free-swimming larva of sea urchins and ophiurans, having several long stiff processes inclosing calcareous rods.
(from the article `reproduction`) ...and development (larva and pupa–adult) and two periods of small size (fertilized egg and imaginal disks). A somewhat similar phenomenon is found ... ...progressive changes. In other animals, the alteration between the larval and the adult forms may be much more drastic. The egg of a sea urchin, ...
Protective screen.
A protective screen. Free-swimming ciliated larval stage of some echinoderms.
Plu'te·us noun ; plural Latin Plutei , English Pluteuses . [ Latin , a shed.] (Zoology) The free-swimming larva of sea urchins and ophiurans, having several long stiff processes inclosing calcareous rods. 
[n] - a large genus of fungi belonging to the family Pluteaceae
pluteus (s) 1. The free-swimming, bilaterally symmetrical larva of an echinoid or ophiuroid. 2. The free-swimming larva of sea urchins and ophiurans, having several long stiff processes inclosing calcareous rods.
genus Pluteus noun a large genus of fungi belonging to the family Pluteaceae; the shape of the cap resembles a roof; often abundant early in the summer