Bryophyten. 521 



Evans, A. W., Vegetative reproduction in Metsgeria. (Ann. 

 Bot. XXIV. p. 271-303. 16 figs. 1910.) 



The author describes the gemmae of twelve species. 1) In five 

 of thern, Metsgeria uncigera (n. sp., Porto Rico), M. furcata Dum., 

 M. quadriseriata Evans, M. myriopoda Lindb., M. oligotricha (n. sp., 

 West Indies), the gemmae are marginal. 2) In six species the gem- 

 mae arise from the antical surface of the wings: M. crassipilis 

 Evans, M. vivipara (n. sp., Porto Rico), M. Liebmanniana Lindenb. 

 & Gottsche, M. dichotoma Nees, M. disciformis (n. sp., New Zealand), 

 M. linearis Aust. 3) In one the gemmae are indefinite in position: 

 M. fruticulosa Evans. Other species, including M. conjugata and 31. 

 hamata, seem to be entirely destitute of gemmae. The author inserts 

 descriptions of his new species. He compares the gemmae of Mets- 

 geria with those of other Bryophytes, and shows that Riccardia 

 (Aneura) is the only thalloid genus in which the gemmae are at all 

 similar, while certain foliose genera (Radula, etc.) have gemmae 

 still more like those of Metsgeria. He finally discusses the conditions 

 under which gemmae are produced, namely conditions such as 

 induce regeneration. There is a kind of antagonism between the 

 apical region and the other parts of the plant. The apex has the 

 first claim upon the nutritive processes; but when its activity is 

 checked, then the other parts secure a higher nutrition, and exer- 

 cise their latent faculty for producing gemmae. A. Gepp. 



Gibbs, L. S., The Hepatics of New Zealand. (Journ. Bot. IL. 

 p. 261—266. London 1911.) 



A list of forty-one hepaticae coliected by her near Auckland, 

 in the northern island of New Zealand, in the spring season of 

 1907. The specimens were determined by F. Stephani and include 

 four new species: Marchantia laceriloba, Aneura papulolimbata, 

 Calobryum Gibbsiae, Lepidosia Gibbsiana. Some notes on habitat 

 are given. A. Gepp. 



Rodway, L., Notes on Treubia insignis Goebel. (Papers Proc. 

 Roy. Soc. Tasmania. p. 62 — 63. 1911.) 



The author records the occurrence of Treubia insignis in Tas- 

 mania. Originally discovered in Java this hepatic has subsequentl}" 

 been found in Tahiti, Samoa and New Zealand; and now it has 

 been gathered in dense woods on the southern slopes of Mount 

 Wellington. The author gives some notes on the morphological 

 peculiarities of the plant. The New Zealand form has been refer- 

 red by Stephani to a distinct species, T. bracteata. A. Gepp. 



Wager, H. A., A new method of asexual propagation in 

 Mo ss es. (Ann. Tranvaal Mus. III. p.40— 41. 1 pl. Pretoria. April, 1911.) 

 The author describes, and figures by microphotography, the 

 detachable terminal buds which are shed in great number by Cam- 

 pylopus trichodes, the sterile tufts of which are very abundant on 

 the top of Table Mountain, Cape Town. The propagula fall off, 

 expand and put out rhizoid on damp soil and develope into mature 

 plants. The species is exposed to droughts and does not get long 

 enough wet periods to permit of sexual reproduction. Similar pro- 

 pagula were found on Polytrichum sp., Bartramia sp. and Bryutn sp. 



A. Gepp. 



