214 Evans: Notes on genus Herberta 



may not be present on every individual leaf. Nevertheless, if a 

 series of leaves is examined, the majority will show the basal 

 teeth clearly. Some of the teeth consist of single cells, but most 

 of them are three to ten cells long and often two to four cells wide 

 at the base. Occasionally an even larger, lobe-like tooth is 

 present. Although the basal teeth are almost always marginal 

 it is sometimes possible to demonstrate a surface tooth. 



3. Herberta Hutchinsiae (Gottsche) sp. nov. 



Jungermamiia juniperina /3 Hook. Brit. Jung. pi. 4. 1812 (in 



part) . 

 Sendtnera adunca j8 Hutchinsiae Gottsche; Rabenhorst, Hep. Eur. 



210 (accompanying text). 1862. 

 Herberta adunca ^ Hutchinsiae Schiffn. Lotos 60: 54. 1912. 



Yellowish or brownish green, sometimes tinged with red or 

 purple, often somewhat glossy, growing in more or less extensive 

 mats or in pendent tufts, sometimes mixed with other bryophytes: 

 secondary stems erect, ascending or pendulous, rigid, mostly 5-10 

 cm. long but sometimes shorter, about 0.25 mm. (or fourteen cells) 

 wide and 0.2 mm. (or twelve cells) thick, the cells everywhere with 

 thickened walls, although showing a fairly marked difference 

 between cortical and median regions: leaves imbricated, strongly 

 secund, unsymmetrical, narrowly ovate, mostly 1.2-1.5 mm. long 

 and 0.45-0.5 mm. wide, the divisions strongly curved and more or 

 less divergent, acuminate to long-acuminate, mostly 0.8-1.2 mm. 

 long and 0.2-0.25 mm. wide; margin normally entire; vitta dis- 

 tinct, extending far out into the divisions but hardly to the apices, 

 undivided portion mostly 0.15-0. 18 mm. long and 0.25-0.3 mm. 

 wide; cells of vitta mostly 30-75 X 14-18 /u in the basal portion 

 and 25-50 X 18-20 ^i in the divisions, marginal cells in the basal 

 region mostly 16-20 ix in diameter, cells between margin and vitta 

 mostly 18-24 /i in diameter; thickenings distinct, in the vertical 

 walls about 6 /x wide; cuticle faintly but distinctly striolate- 

 verruculose: underleaves similar to the leaves but symmetrical, 

 squarrose, and with straight divisions: male inflorescences normally 

 borne in an interrupted series in the upper part of a stem, more 

 rarely on a lateral or ventral branch; bracts and bracteoles mostly 

 in four to six series, similar to the leaves but with straighter and 

 less divergent divisions and a broad basal pocket, about i mm. long 

 and 0.45 mm. wide, margin subentire to sparingly and irregularly 

 denticulate; antheridia mostly two or three in each axil: female 

 inflorescence apparently always terminal on a stem, often with 



