ZOOLOGY AND BOTANY, MICROSCOPY, ETC. Ill 



those appear. He recommends that attention should be paid by collectors 

 to this point : and also that individuals arising from sexual and asexual 

 plants respectively should be raised under culture, for a comparison of 

 their cytological characters. 



North American Marine Algae.* — B. M. Davis publishes a report 

 on the algal vegetation of Woods Hole and its vicinity. The first 

 section deals with the ecology of the flora, the coast, the sea bottom, 

 tides and tidal currents, the effect of ice, depth of water, light, tempera- 

 ture, and seasonal changes, and salinity of the water. Characteristic 

 algal associations are described, numbering 57. This section is accom- 

 panied by 47 descriptive charts. The second section is a catalogue of 

 the marine flora, with notes concerning the distribution of the individual 

 species. 



Australian Marine Algse.t— A. H. S. Lucas publishes the first 

 instalment of his notes on Australian algse, and iucludes descriptions of 

 three new species — Nitophyllum sinuosum (Botany Bay), Polysiphonia 

 compacta (Port Jackson), and Ptilonia intermedia (Tasmania) : the 

 second of these has a nine-siphon structure. In discussing Turhinaria 

 he suggests that the evesiculose T. Murrayana may be a simple un- 

 branched reef -form of T. decurrens. Spermatochnus Lejolisii, found at 

 Port Stephens, is a European species. Some of the plants are figured. 



New Japanese Algse.} — K. Yendo describes three new species of 

 Japanese alga? and a new form of Goilodesme bulligera Stromf . One of 

 these novelties forms the type of a new genus, Benzaitenia, and is para- 

 sitic on Chondria crassicaulis and Laureacia paniculata. It is fully 

 described and figured. The vegetative organs are reduced to a mere 

 aggregation of cells, which in the young plant are embedded in the 

 parenchymatous host-tissue, and require staining to differentiate them. 

 It belongs to the Dasyere. The antheridia, tetraspores, and cystocarps 

 have all been found. 



Fungi. 

 (By A. Lorrain Smith, F.L.S.) 



Morphological and Biological Study of Rhizopus Artocarpi.§ 

 The fungus studied by A. Sartory and H. Sydow was sent to them 

 from the Philippine Islands by C. F. Baker. It was originally found 

 in Java. The mycelium is white at first, but becomes brown or even 

 black. Upright tufts are formed, and some of the filaments bear 

 sporangia. The spores are very variable in size, from 8 /* to 20 /x in 

 diameter, and are globose or ovoid or often angular, clear brown in 

 colour, and striate. The authors grew the mould on various media, 

 and give the results of the experiments. 



* Bull. Bur. Fisheries, xxxi. (1911) pp. 443-544, 795-833 (chartsj. 

 t Proc. Linn. Soc. N.S.W., xxxviii. (1913) pp. 49-60 (5 pis.). 

 t Nyt Mag. Naturvid., li. (1913) pp. 275-88 (2 pis.). 

 § Ann. Mycol., xi. (1913) pp. 421-4 (9 figs.). 



