A. IV. Evans — North American Species of Frullania. 25 



15. Frullania Califomica (Aust.). 



Fi-ullania Asagrayana, var. Califomica Aust. in Underwood, Bull. 111. State Lab. 

 Nat. Hist., ii: 67. 1884 (in part). 



Frullania Asagrayana, var. Califomica Aust. (emend.), Howe, Erythea, ii: 98. 1894. 



Frullania Asagrayana, var. alsophila Howe, 1. c, ii : 99. 1894. 



Frullania Tamarisci Bolander, Catalogue of the Plants growing in the vicinity of 

 San Francisco. 1870 (not (L.) Dum.). 



Plate XII. figs. 11-22. 



Dioicous : plants closely appressed to matrix or growing in wide 

 depressed tufts, green, varying to browriish-red : stems once to thrice 

 pinnate, often irregularly so : leaves subimbricated, the lobe orbicu- 

 lar, arching over the stem and cordate at base, rounded and more or 

 less decurved at the apex, entire ; lobule separated from the stem by 

 less than half its width, obovate-clavate ; stylus a minute subulate or 

 disc-like process : underleaves orbicular, plane or slightly reflexed on 

 one or both sides toward the base, bifid about one-third with obtuse 

 or subacute lobes and sinus, margin entire, sometimes slightly auricu- 

 late at base ; leaf -cells rather thick-walled, trigones inconspicuous and 

 intermediate thickenings scanty ; discolored cells wanting or few in 

 number, scattered or more rarely in a short median line : ? inflores- 

 cence terminal on a short branch ; bracts in two or three pairs, un- 

 equally bifid, the lobe ovate or ovate-lanceolate, acute, entire, lobule 

 lanceolate or subulate, acuminate, margin more or less reflexed, bear- 

 ing on the inner side at the base a laciniate lobe-like segment or 

 stylus, otherwise entire, bracteole connate on one side with bract, 

 ovate, bifid to about the middle with lanceolate acuminate lobes and 

 acute sinus, bearing toward the base on each side a distinct usually 

 laciniate or ciliate segment, otherwise entire ; both bracts and bracte" 

 oles becoming smaller and simpler on receding from the perianth ; 

 perianth about half exserted, compressed on the sides, oval, narrowed 

 into a short beak, deeply one-keeled postically, smooth ; 3 spike on 

 a short lateral branch, globose, bracts in about two pairs. 



Stems 0-15'"'° in diameter ; lobes of leaves 0-50'^'" long, 0-45™"^ 

 wide, lobules O'lV"™ long, 0-09™"' wide; underleaves 0-22'"'^ long, 

 0.25mm wi(3e; lobes of branch-leaves 0*22'"™ long, O'lY'"'^ wide; 

 branch-underleaves 0-12""" long, 0-09™'" wide ; leaf -cells at edge of 

 lobe 0-010™"^ in the middle, 0-014™'" in diameter, and at the base 

 Q.Q30mm iQpg^ o-022'""^ wide ; bract I, lobe 1-40'""^ long, 0-55'"™ wide, 

 lobule 0-75™"^ long, 0-25™™ wide ; bracteole I, 1 -OO"" long, O-SO™"^ 

 wide ; bract II, lobe 0-90'"™ long, 0-50™'=^ wide, lobule 0-45""" long, 



