ORDER II. ANDREAEALES 

 Family ANDREAEACEAE 

 A FAMILY containing only one genus. 



ANDREAEA Ehrh. (An-dre-ae-a) 



A genus containing many species, growing on rock, 

 but not on limestone, usually in mountainous regions; 

 three species occurring in our range; not common. 

 Named after Andrea, an apothecary 

 of Hanover, Germany. 



Plants small and fine, growing in dense 

 or lax tufts on rocks; reddish-brown to 

 almost black. 



Stems erect, slender, short, usually about ^^<ircaea petrophUa 

 % inch long; very brittle. , a. moist capsule; 



^^ -^ (,, dry capsule; en- 



Leaves small, fine, spreading when larged. 

 moist; closely folded when dry; some- 

 times too small to be seen; reddish-brown to almost 

 black. 



Seta absent, but represented by a very short stalk of 

 different origin. 



Capsule at apex of stem, very small, erect, oval; dark 

 brown or blackish ; without peristome or operculum; splitting 

 along four longitudinal lines, but united at the apex. 



Operculum absent. 



Range, almost cosmopolitan. 



