Botanists ..... helppppppppp!?

Question

riccia and porella are not in our curriculum yet a question was put in an exam held on saturday which of these have shrunken s*x organs ........ 1 porella 2 riccia 3 anthoceros 4 funaria .......... do state your reason... and if possible a pic...........shukriya(thanks in hindi)

Answer 1

Most well developed s*x organs ( Gametangia ) are in Funaria which is most advanced bryophyte .

http://upload.wikimedia.org/wikipedia/co...

A well developed gametangium has allthe parts .

Most shrunken are in Riccia -

http://www.gutenberg.org/files/20390/203...

A shrunken gametangium has reduced parts / absent parts .