On Some Mosses from the Blue Mountain of Cuba

time, not only in P. alpinum, but in other species of the genus, and has led in one case at least, in South Africa, to the erroneous record of Dendroligotrichum as occurring there. Climacium dendroides (L.) Web. & Mohr.-Bear Id.; 17 June, V. S. Summerhayes (4b). Berggren records a single stem only, from King's Bay. Thuidium abietinum (L.) B. & S.-One or two gatherings were made of this. Berggren records it only from Green Harbour and Advent Bay. Amblystegium serpens (L.) B. & S.-Bear Id.; 17 June, V. S. Summerhayes (79). Sterile: not previously recorded from Spitzbergen. Calliergon sarmentosum var. fontinaloides Berggren.-Cape Boheman; 15 July, V. S. Summerhayes (IIoa). The exact habitat of this remarkable form is not given, but I have no doubt it was a submerged form. It appears to conform very fairly with Berggren's description of his var. fontinaloides (of which I have seen no specimens)' from the Dovre, Norway, but is, I should judge, a still more extreme form. The stems are 15 cm. long, very closely and regularly pinnate with short, subequal, widely divergent, elongate, much attenuated leaves.. The plant has, in fact, in almost every particular (except that the leaves are straight, not falcate) the appearance of a Drepanocladus such as D. Rotae, and it is hard to convince oneself, even when examining it with the lens, that it is not that, but a Calliergon. The lower part of the stem and the lower branches are much denuded, which appears to indicate a station in flowing water. The variety has only been recorded-from the high alps of Styria in addition to the original locality. I have a somewhat similar form from New Zealand, collected by Dr. L. Cockayne "on bottom of shallow natural pond in Craigieburn Mts., Canterbury, at 1200oo m. alt. " NORTHAMPTON, ENGLAND