116 BIBLIOGRAPHY. germanicum, Weis, und A. Trichomanes L. beschrieben von H. W. Reichardt. mit eiuer Tafel. Verhandlungen der kaiserlich-konig- lichen Zoologisch-Botanischen Gesellschaft in Wien Band ix., p. 93. 2. Mosses {Muse I). Arnold, E. — ITeber die Laub-moose des Frankischen Jura. Regensburg Flora, 1860, p. 401-4O5. Hampe. — Was sind Laubmoose, und wie ist deren systematiscbe Eintheilung iibersichtlich und verstiindlich. Yon Ernst Hampe. — Botanische Zeitung, am 4 Mai, 1860. The following arrangement is proposed by the author : — Principium potissimum classification is est : Calyptra 1 Muscis frondosis propria. A. Calyptra irregularites fmctu maturo disrupta, inferior pars ad basin thecae remanens. — Diarrhagoniitria. (Musci spurii). B. Calyptra basi jam juventute tota libera regulariter circum- scissa Stegomitria. (Musci genuini). A. Theca omnino clausa. — Cleistocarpi. B. Theca operculata. — Stegocarpi. I. Theca in caule primario apicalis. — Acrocarpi. II. Theca in caule secundario apicalis. — Cladocarpi. III. Theca radicalis vel lateralis pleurocarpis simillima sed struc- tura interna acrocarporum — Rhizocarpi. IV. Theca subsessilis vel longe stipitata in caule secundario late- ralis, gemma fructifera sessilis conspicua : folii structura interna tri- folici ordine cellulorum prosenchymaticarum. — Pleurocarpi. V. Theca inter folia equitantia inserta. — Entophyllocarpi. VI. Theca in pagina inferiore caulis inter tegumenta propria in- serta. — Hymenophyllocarpi. Heueler. — Ueber das wahre Hypnum polymorphum Hedwig's, von Ludwig R. v. Heufler. Verhandlungen der kaiserlich-koniglichen Zoologisch-botauischen Gesellschaft in Wien, Band ix., p. 383. Jcratzka. — Zur Moosnora Oesterreichs, i., ii., iii., von J. Juratzka. Verhandlungen der kaiserlich-koniglichen Zoologisch-botanischen Gesellschaft in Wien, Band ix., pp. 97, 313. Kltnograff. — Zur Sexu.alitat der Moose, von Dr. H. von Klinggraff. Botanische Zeitung, 26th Oct., 1 860. The author for eight years had observed a species of Hypnum growing in large quantities, half- im- mersed in pools of peaty water. In seven years he found only about ten capsules, and was led to consider the moss dioecious. In August, 1859, the author found flowers of each sex growing on different plants, the male and female plants being at a distance from one an- other. He therefore took male plants, with fully- developed anthe- ridia ; and selecting six pools which contained only female plants, he placed male plants in two of them. In the following June he found in the two pools into which the male plants had been introduced, upwards of 100 fully-developed capsules; whilst the remaining four
