506 
V. HEPATIC.®. 
\Plagiochila. 
much branched, dendroid. Leaves spreading, imbricate, dimidiate-ovate, 
acuminate ; ventral margin and apex toothed, with a terminal spine. Perianth 
terminal and on the forks, long exserted, oblong ; mouth compressed, 2-labiate, 
lips acute, ciliate-tootked. — Syu. Hep. 27. 
Abundant throughout the Northern and Middle Islands, Cunningham , etc. (Java.) 
11. P. fasciculata, lindl. — FI. N. Z. ii. 132. Stems ascending, 
dichotomous below, fastigiately branched above. Leaves obliquely orbicular- 
oblong, convex ; ventral margin and apex unequally toothed. Perianth lateral 
and on the forks, long exserted, obovate; mouth compressed, obliquely trun- 
cate, ciliate.- — Syn. Hep. 27 ; PI. Tasm. ii. 224. P. Colensoi ? Taylor in 
Lond. Journ. Bot. 1846, 269. 
Northern and Middle Islands : common on trees, J. D. II., etc. Ziord Auckland’s 
group, J. IJ. H. (Tasmania.) 
12. P. Dicksoni, Hook. f. and Tayl. FI. N. Z. ii. 134. t. 96. /. 3. 
Stems erect, flexuous, 2-3 in. high, sparingly branched in a dendroid manner. 
Leaves spreading, ovate-oblong, truncate and 2-3-toothed at the apex ; dorsal 
margin quite entire, ventral sparingly toothed ; involucral broader, spinulose. 
Perianth elongate-obovate, compressed; lips rounded, toothed. — Syn. Hep. 
637. 
Northern and Middle Islands, Menzies, etc. — This is sometimes as little branched as 
the following, or indeed less so, and both of them may be referred to either section of these 
two. 
ft Stems not dendroid nor fasciculately branched , either simple or dichotomous or 
sparingly divided. 
a. Leaves entire or very slightly toothed , or \-Z-toothed at the apex. 
13. P. ansata, Ilook.f. and Tayl. FI. Antarct. 425. t. 156. /. 6 ; — FI. 
JV. Z. ii. 131. Stems suberect, tufted, nearly simple, 1-li in. high. Leaves 
red-brown, closely imbricate, suberect, appressed, flat, obliquely-orbicular, 
quite entire ; involucral truncate, the dorsal margin toothed at the base. 
Perianth obconic, compressed; mouth denticulate. — Syn. Hep. 649. 
Middle Island : Port 'William, Lyatt. (Falkland Islands.) 
14. P. microdictyum. Mitten in FI. N. Z. ii. 131. t. 94./. 6. Stems 
2-3 in. high, slender, sparingly branched ; branches with incurved tips. 
Leaves green, spreading, closely imbricate, deltoid-ovate, the angles rounded; 
dorsal margin quite entire, ventral sometimes slightly toothed ; involucral a 
little toothed ; perianth oblong, compressed ; lips ciliate-toothed. 
Northern and Middle Islands: Bay of Islands, J. D. H., with P. prolifer a and 
Sendtnera attenuata ; Otago, Hector and Buchanan. 
15. P. radiculosa. Mitten in FI. N. Z. ii. 133. t. 96,/. 1. Stems 2- 
3 in. long, prostrate, rooting ; branches few, ascending. Leaves green, im- 
bricate, diverging, obliquely oblong- cordate, 1-2-toothed at the apex or quite 
entire, dorsally very decurrent ; involucral broader, toothed and ciliate. 
Perianth immature, compressed, broadly obconic; mouth truncate, toothed. 
Northern Island: on Weinmannia bark, Tarawera, Colenso. 
. /8. Leaves much toothed and spinulose. 
16. P. deltoidea, Lindb. ; — Ft. JY. Z. ii. 131. Variable in size and 
