31 
NEW ZEHALAND INSTITUTE. 
BULLETIN No. 3, PART II. 
IssuED 7TH SePTEMBER, 1914. 
STUDIES IN THE 
BRYOLOGY OF NEW ZEALAND, 
WITH SPECIAL REFERENCE TO THE HERBARIUM OF 
ROBERT BROWN. 
By H. N. Drxon, MA, ¥.1.8. 
PART tt. 
Plates V, VI. 
I. DICRANACEAE—continued. 
Brrore proceeding with the remaining genera of Dicranaceae it may be 
useful to give an analytical key to these genera so far as they are found in 
New Zealand. It should perhaps be pointed out that the characters given 
in the key are applicable to the New Zealand species of the various LO 
but must not be taken to be “ generic”’ characters in the broad se 
Key To THE New ZEALAND GENERA OF DICRANACEAE. 
1. Alar cells rae or Se differentiated td. also rennet ae ae 2 
Alar cells dis a fee 
lants minute, ca ides asia or near ie ie =a = 3 
Plants meee or, if a7 capsule fully exserted + ie 3 4 
Capsule oval, without = ag a ..  Pleuridium. 
Capsule with a long, eels neck : Bruchia. 
1p 
4. | Capsule with a very long —_ leaves harrow ‘ak jieccuced | in bale Trematodon 
3. 
Neck of capsule short or n 
Speed minute, nerve in eer witions Seades oils : Peristome of ih, 
5. undivided teet as Seligeria. 
insite ae: nerve with Stee. cells : es es 6 
6. Leaf-cells short, mammillose or papillose ; ig not iindake oo ne : 
Upper cells pega elongate, smooth, rarely slightly sipltined a6 8 
Ve i late, cells small, pp obscure with oo ies 
7. | . Cheilothela. 
aioe nd above, not subulate ium. 
