HYPNUM. 465 



reddish purple, beautifully variegated with golden green and 

 orange, very glossy and with almost a metallic sheen. Leaves 

 large and densely crowded, so that the stems appear robust and 

 tumid, strongly and very regularly circinate so as often to form 

 a closed circle with the point, when dry little altered, only 

 slightly flexuose at point, not plicate, longly and finely acuminate 

 from a widely oblong base, entire or sinuolate at margin, concave, 

 canaliculate, at base truncate, not excavate nor decurrent ; nerve 

 narrow, but rather strong, reaching to about f the length of the 

 leaf. Cells very long, narrow and incrassate, narrowly linear 

 and vermicular, with the walls, in the older leaves especially, 

 very thick and porose, 30-40 times as long as wide, uniform 

 almost to base, at insertion deeply coloured, with very incrassate 

 and porose walls, rather wider, sub-rectangular, in one or two 

 rows ; not distinct nor decurrent at angles, or only a very few 

 falsely auriculate, as described under the last species. Seta long, 

 i|-2 inches. Capsule large, oblong, inclined, curved ; annulus 

 present. Autoicous. 



Var. /8. Cossoni Ren. (Hypnum Cossoni Schp.). Stems 

 more or less distinctly pinnate, often taller and robust, frequently 

 brilliantly coloured, leaves less regularly circinate, with the 

 acumen spirally flexuose and spreading when dry ; somewhat 

 less crowded. Dioicous. 



Hab. Bogs, frequent. The var. (B more rare. 



This is one of the most beautiful species of the Section, sometimes so robust as to 

 resemble H. scorpioides ; but at other times more slender and approaching the sub- 

 spec, intermedium ; the var. Cossoni is indeed in some respects intermediate between 

 the two, but more robust than the latter, with larger leaves, and usually of a deeper 

 hue. The habit and the non-decurrent, straight insertion of the leaves separate it 

 from all other species except the last, for which the description of that species may be 

 consulted. I am inclined to doubt whether the inflorescence is so constantly 

 autoicous in H. revolvens, type, as indicated by Renauld, in contrast with the var. 

 Cossoni. 



* Hypnum intermedium Lindb. (Amblystegium inter- 

 medium Lindb.) (Tab. LVII. I.). 



Differs from the var. Cossoni above by the more slender 

 stems and pale, yellowish or green colour, the smaller leaves 

 variously twisted and sometimes slightly crisped when dry, with 

 the acumen shorter, often as short as in H. vernicosum ; cells 

 shorter, less incrassate, 10-15 times as long as wide or less, not 

 so incrassate nor so coloured at base ; at extreme angles there are 

 frequently a few larger, hyaline cells forming very minute, some- 

 what inflated but not decurrent auricles. Dioicous. 

 EI 



