moss-Syntrichia papillosa

Syntrichia papillosa
(family Pottiaceae)

Syntrichia papillosa photo by Bob Klips

Syntrichia papillosa on brick wall on residential street in Columbus, Franklin County, Ohio. Apriul 23, 2011.

Syntrichia papillosa photo by Bob Klips

Syntrichia papillosa on brick wall on residential street in Columbus, Franklin County, Ohio. April 23, 2011.

Syntrichia papillosa photo by Bob Klips

Syntrichia papillosa and harvestman on brick wall on residential street in Columbus, Franklin County, Ohio. May 5, 2007.

Syntrichia papillosa photo by Bob Klips

Syntrichia papillosa, dry, with foliose lichen (Physconia detersa). Griggs Reservoir, Franklin County, Ohio. January 31, 2010.

Syntrichia papillosa photo by Bob Klips

Brick wall on residential street in Columbus, Franklin County, Ohio

How to recognize Syntrichia papillosaThis moss can be recognized by examination with a good handlens when the plants are wet since the oblong-obovate leaves with the very obvious awns have numerous round propagula or gemmae on the upper  leaf. These propagula each can grow a new plant if they fall off in a good site. And the brick wall above must be a very good site. Under the compound microscope the quadrate cells each have a strong papilla on the back side of the leaf. The midrib also has many papillae on the back of the leaf. It is much less attractive when dry and the leaves are folded together and twisted and dark.

Where to find Syntrichia papillosa:   This moss forms dense cushions and patches of plants usually on the bark of trees, but also on the mortar and brick of walls and it looks quite healthy on the brick wall in the pictures above.

Syntrichia-papillosa-simplemap

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