'976 Proceedings of Royal Society of Edinburgh. [sess. 
JUNCAGINACEJE. 
Triglochin palustre, L. I., II. Generally but sparsely dis- 
tributed about the shores of lochs. 
MELANTHACE^E. 
Tofieldia palustris, Huds. I. About shores in peaty places ; 
not common. 
Narthecium ossifragum, Huds. I. About shores in peaty 
places ; abundant. 
JUNCACE^E. 
.Juncus effusus, L. I., II., III. Abundant everywhere. 
Juncus conglomeratus, L. I., III. On drier ground than 
J. effusus and much less abundant. 
•Juncus bufonius, L. I. Abundant about some of the low- 
land lochs. 
•Juncus articulatus, L., including J. lamprocarpus, Elirh. I. 
II., III. One or another of its protean forms; abundant 
nearly everywhere ; a very curious form with flowers and 
nodes viviparous abounds by a small loch near Aldourie. 
Juncus supinus, Mcench. I. This is one of the most protean 
species imaginable ; its various forms almost defy diagnosis. 
The normal type is of terrestrial habit, and is found spar- 
ingly about the shores of lakes. Opposed to this is a 
submerged aquatic plant, with tresses of numerous long 
hair-like leaves, without flow T ers ; one might therefore 
easily be puzzled as to their identification. By careful 
search, however, a whole chain of intermediate forms may 
be found. The clue to the submerged hair-like leaved forms 
(t Juncus Jluitans , Lam.) is found in shallow places with but 
a few inches of water. Here we find forms bearing 
•degraded and abortive flowers, with the leaves of the sub- 
merged plant. In drier places we find intermediate forms 
again ; often with degraded flowers, and frequently vivipar- 
ous at nodes and inflorescence. The terrestrial forms may 
resemble J. bufonius or certain varieties of J. articulatus. 
These terrestrial forms are usually erect, about 6 inches 
