X hits on this document

PDF document

Vascular Plants - a quick review - page 6 / 12

25 views

0 shares

0 downloads

0 comments

6 / 12

Phylum Lycopodiophyta

Selaginellaceae - spike mosses

Heterosporous: differentspores

Unlike Lycopodiaceae, Selaginellaceae are heterosporous with different types of spores: microspores and megaspore (not related to size) the micro give rise to male gametophytes and the mega give rise to the female gametophytes.

Phylum Lycopodiophyta

Selaginellaceae - spike mosses

Selaginella ruprestis Rock spike moss

Selaginella selaginoides Northern spike moss

Endangered!

Phylum Lycopodiophyta

Selaginellaceae - spike mosses

Selaginella eclipes meadow spike moss

Phylum Lycopodiophyta

Isoetaceae - quillworts

1 genus and about 150 species; worldwide; 2 spp. in WI - Isoetes echinospora most common

Aquatic or semi-aquatic plants with corm-like stems with secondary growth. Absorb carbon through their roots.

Leaves with ligules and quite long (15+ cm) for microphylls.

I. butleri - not native

Isoetes echinospora

6

Document info
Document views25
Page views25
Page last viewedFri Oct 28 07:22:14 UTC 2016
Pages12
Paragraphs230
Words1800

Comments