Friday, November 18, 2011

Specimen #9 The White Cushion Moss

Fig. 1 Leaves of the white cushion moss.

Fig. 2 White cushion moss next to a quarter. 

Fig. 3 16X White cushion moss.
Specimen 9
Name: Leucobryum glaucum The White Cushion Moss
Family: Leucobryaceae
Collection Date: Sept 26, 2011
Habitat: damp rock
Location: South Chagrin Reservation, Ohio
Description:
Collector: Jennifer Friedler

Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.

Keying Steps:
Introduction key pg. 19
1a. has stem and leaves; erect, ascending, prostrate, or hanging...2
2b. No hayline cells...3
3b. Green...pg. 28. Order Bryidae

Key to Families/Genera Bryidae pg. 28
1a. Whitish with 2 kinds of cells throughout leaf, large hyaline cells in 2-3 layers and small green cells between...2
2a. Leaves crowded on upper side...pg. 82 Leucobryum

Key to Genus Leucobryum pg. 82
1a. leaves 5-8mm long...Leucobryum glaucum

“Whitish plants in hemisphaerical cushion 2-9cm or more high, on soil, humus, rotten logs, tree bases, and moist vertical rocks, especially in forests, Newfoundland to Minnesota and South to the gulf states” (Conrad 86).

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