49 
TETRAPLODON WORMSKIOLDIL Lawns. IN BRITAIN. 
By D. A. Jonzs, F.L.S., anp E. CO. Horretzt, F.L.S. 
(Puarz 480, rics, 12-19.) 
Durine a visit to Upper Teesdale of nearly a month’s duration 
e found, growing on the summit of Widdy 
like depressions locally known as brocks, with which the flatter por- 
tions of the Durham and North Yorkshire moors are intersected, a 
This plant remained undetermined until one of us (D. A. J.) 
examined it, whilst working out the Musci Veri we had collected, 
5. sphericum. It was then sent to Professor Barker, who identified 
it with S, Wormskioldii, with which determination Messrs. Bagnall, 
en, and Nicholson, to whom it was subsequently submitted, 
agreed, 
The Teesdale plant is conspicuous for the large size of its 
leaves, these being considerably longer and wider than in a speci- 
men collected in Lapland by Schimper, and distributed by him in 
his «Pp ugillus.” §, Wormskioldii would, however, appear to be 
very variable in the size of all its parts, there being arctic specimens 
in the National Herbarium less than half an inch in height and with 
Small leaves, and others rivalling the Teesdale one in height and 
robustness, 
The following description is for the most part a translation of 
those given by Schimper in the Bryologia Europea and in the 
Synopsis Muscorum Europaorum (ed. ii.), the italics drawing atten- 
tion to the points of greatest importance in separating S. Worms- 
kioldii from 8. sphericum, the species with which it is most nearly 
telated in vegetative structure :— 
Trrraptopon Wormsxioipn Lindb. in Musei Scand. 19 (1879). 
Syn. Splachnum Wormskioldii Hornem. in Flor. Danica, tab. 
1659; Bryol. Eur. iii. tab. 291. 
Aplodon Wormskioldiit R. Br. 
Eremodon Wormskioidii Brid. 
Monoicous, perennial; tufts soft, becoming in course of time 
tall and denser, vinous-red in the middle, interwoven with reddish 
Tadicles. Stem 2-6 inches high, very slender, several times dicho- 
jomously branched. Leaves very soft, from a broad base oval or 
eadly ovate, acuminate obtuse or shortly or longly apiculate ; 
Journan or Borany.—Von, 40. [Fes. 1902.] E 
Mo. Bot. Garden 
190904. 
