60 Algae. 



Among the plants recorded is Polysiphonia japonica Harv., 

 the diagnosis of which has been omitted from J. G. Agardh's 

 Species algarum and from De Toni's Sylloge Algarum. It is 

 therefore quoted in this „paper, since the original place of 

 publication in Perry's Narrative of the Expedition of an 

 American Squadron to the China Seas and Japan, 1852 — 1854, 

 Washington, 1856. Vol. II. p. 331. is difficult of access. 



E. S. Gepp (Barton). 



HILL, A. W., Note on a species of Chara. (The New Phyto- 

 logist. Vol. III. No. 3. March 28, 1904. p. 69—73. figs. 



08-73.) 



The author describes the spines, which are developed from the 

 nodal cells of the „middle rows" of the cortex lobes, in a species of 

 Chara apparently undetermined. The largest and oldest spines are in 

 every case situated nearest to the nodes of the stem, and the spines of 

 both ascending and descending lobes are developed in regulär acro- 

 petal succession and are impressed with the direction of growth of their 

 respective parental lobes. Eventually they overlap each other and be- 

 come interlaced, forming a dense protective covering to the young inter- 

 nodal cells. The distribution of the starch in the tissues is peculiar. it 

 ■occurs in the youngest portions of the stem and in more fully deve- 

 loped internodes. In older portions of the stem, starch is very local. 

 Large and conspicuous starch grains are found only in the cells forming 

 the nodal complex of either stem or branch, or in the cells forming, or 

 developed from, the nodal cells of the cortex. Small inconspicuous starch 

 grains occur in quantity in the Chlorophyll granules of the large inter- 

 nodal cells of the main stems. Minute starch particles may also be 

 found in the chlorophyll-corpuscles of the older internodal cells of the 

 cortex and cortical spines. The distribution of starch appears to have no 

 connection with the peculiar growth of the cortical lobes and spines. 

 The author considers that this growth is independant of normal geotropic 

 Stimuli, each internode having its own centre of attraction, marked by 

 the zone where the cortical lobes meet together. 



E. S. Gepp-Barton. 



HOWE, MARSHALL, A., The Museum Exhibit of Seaweeds. 



(Journal of the New York Botanical Garden. V. p. 56—64. 



fig. 9—12. March 1904.) 



A populär account of the exhibit of seaweeds in the museum of 



the New York Botanical Garden. Fifteen cases are devoted to this 



display, which includes all the principal groups. In addition to dried 



specimens there are also preserved plants and plates or figures illustrating 



minute structure. Moore. 



fiowE, Marshall, A., The Pike Collection of Algae. (Journal 

 of the New York Bot. Garden. V. p. 86, 87. April 1904.) 



A short account of this collection recently acquired by the N e w 

 York Botanical Garden. It constitutes more than 3 000 specimens and 

 is particularly rieh in Mauritius material. Moore. 



Marsh, C. Dwight, The Plankton of Lake Winnebago 



and Green Lake. (Wisconsin Geological and Natural 



History Survey. Bull. XII. Ser. 3. p. 1— 94. October 1903.) 



After a description of the two lakes investigated, the first of which 

 was of the shallow type and contained quantities of fish, while the second 



