222 TlMEHRI. 
J. geminifolia Mitt. Zl Linn. Soc. vii. 164 from tropical 
Africa and the J. subintegerrima, Reinev. Bb. et Nees 
Hep. Jav. in the Synopsis Hepaticarum, placed in Plagio- 
chila (p.55) to this belong P. variegata Lind. P. variabilis 
Lacoste and also P. securifolia, Lind. Sp. Hep. t x. all 
which have the leaf angles united on both sides of the stem 
even when they are not opposite, a characteristic which is 
not mentioned in their original descriptions or depifted in 
their figures nor in that of the J. macrocalyx as found in the 
Synopsis. The perianth in J. subintegerrima agrees with 
that found in the species allied to J. colorata and as in their 
case is subtended by shortened and dentate involucral 
leaves. 
Exaclly similar instances of the conjugation of the leaf- 
angles are found in Plagichila, some of which do not 
otherwise resemble each other. 
283. Plagiochila adiantoides, Sw. Lind. Male stems only Upper 
Slope. 
204, 284. Aneura bipinnata Sw. (Jungermannia) Specimens taken from 
large tufts. Upper Slopes. 
In these specirrens the stems are 4-5 cm tall including 
the side branches, 1 cm wide, the ultimate ramuli with a 
limb of about two rows of more pellucid cells. In A. fucoides 
Hook. Musi Exot, t. 85, this limb is very much wider ; in A. 
Poepgregiana it is nearly or quite obsolete. Besides these, 
there are several other remarkable S. American species. 
A. balata, Gotts., from Chili, a very large species. A. pre- 
hensilis Hook, f. et Tayl. Fl. Ant. originally from Her- 
mite Island, since collected by Cunningham with stems 
nearly six inches tall and always with its pruinose look 
when dry, A. polyclada Mitt, gathered in Otway Harbour, 
Patagonia, during the visit of the Challenger expedition, 
a small species about one and a half inches tall. 
A. polyptera Mitt, from Magellan, collected in Cockle 
Cove by Dr. Coppinger H.M.S. Alert, fronds 10 cm. alt , 2 
cm. lat, ramis approximatis tripinnatis ubique lamina 5-6 
cell lata limbulus dorso planus, laevis ventre precipue in 
ramis ramulisque lamellis angustis longitudinalibus vcstitus, 
and A. denticulata Mitt, from the Andes of Bogota gathered 
