No. 1, July, 1920] MORPHOLOGY AND TAXONOMY, BRYOPHYTES 10 1 



ment. Most of them require a considerable amount of light and prefer a relatively low 

 humidity. In temperate regions they arc in 1 heir must luxuriant condil ion 'luring the months 

 of October and November. — A. W. Evans. 



1030. Evans, Alexander W. Three South American species of Asterella. Bull. Torn • 

 Bot. Club 46 : 409-480. 1919.— .1 /< v. lla chilensis (Mont.) comb, qov., A. macropoda (Spruce) 

 COmb. nnv., and .1. boliviano, (Stcph.) comb. nov. arc the specie 'i' '-ussed. — P. A. Mum. 



1037. Graham, Margaret. Centrosomes in fertilization stages of Preissia quadrata 

 (Scop.), Nees. Ann. Botany 32:415-420. PI. 10. 191X.— The occurrence of centrosomes a nd 

 asters is demonstrated in the egg cell of Preissia quadrata after the entrance of the anthero- 

 zoid hut before the fusion of the male and female nuclei. The centrosomes occur at the oppo- 

 site poles of the female nucleus and the astral rays, which are not numerous, converge upon 

 the centrosomes. Similar centrosomes and asters are shown also in the cells of the young 

 sporophyte. — A. W. Emus. 



1038. Graham, Margaret. Centrosomes during early fertilization stages in Preissia 

 quadrata. Mem. Torrey Bot. Club 17:323-325. PI. 8. 1918.— See Bot. Absts. 2, Entry 

 79; also preceding Entry, 1037. 



1039. Mottier, D. M. Chondriosomes and the primordia of chloroplasts and leucoplasts. 

 Ann. Botany 32: 91-114. PL 1. 1918.— See Bot. Absts. 2, Entry 81; 4, Entry 686. 



1040. Negai, Isabtjro. Induced adventitious growth in the gemmae of Marchantia. 

 Bot. Mag. Tokyo 33 : 99-109. Figs. 1-5. 1919— See Bot. Absts. 3, Entry 2902. 



1041. Theriot, I. Mousses de i'Annam. [Mosses of Anam.] Recu6il Publ. Soc. Hav- 

 raise d'Etud. Diverses 1919:33-47. PI. 1, 2. 1919.— The present paper is based on a col- 

 lection made in 1912 by A. Krempf along the southern coast of Anam. Of the 28 species enum- 

 erated 13 are known also from the Sunda Islands. The following are proposed as new and 

 figured on the two plates: Ectropothecium annamense, Homaliodendron crassinervium, Leuco- 

 bryum Krempfii, Leucoloma annamense, L. Krempfii, Neckeropsis Krempfii and Pinnalella 

 (?) corrugata Cardot & Theriot. — A. W. Evans. 



1042. Theriot, I. Contribution a la flore byrologique du Chili. [Contribution to the 

 bryological flora of Chile.] Rev. Chilena Hist. Nat. 22: 79-92. PI. 5, 6. 1918.— This is the 

 third article published by the author under the above title. It is based on a collection of 

 mosses made by Jose A. Campo in the vicinity of Victoria, Chile. Thirty-seven species and 

 varieties are enumerated with citation of specimens and many critical observations are in- 

 cluded. The following species are described as new: Campylopus Campoanus, C. carbonicolus , 

 Tortula obscuriretis, Slereodon Campoanus, and Eurhynchium confusum. These, together 

 with Rigodium mano-fascicidatum C. Mull., are figured on the plates. — A. W. Evans. 



1043. Watson, W. The bryophytes and lichens of calcareous soil. Jour. Ecol. 6: 1S9- 

 198. 1918.— See Bot. Absts. 4, Entry 309. 



1044. Wheldon, J. A. Notes on Braithwaite's Sphagnaceae exsiccatae. Jour. Botany 

 S>7: 142-147. 1919. — These exsiccatae were issued while Braithwaite's work, the "Sphag- 

 naceae or Peat Mosses of Europe and America," was in preparation, and the set under con- 

 sideration was dated April, 1877. The present author believes that the various sets were 

 not all alike and notes the fact that very few of the specimens were collected by Braithwaite 

 himself. One of the numbers, issued under the name S. subsecundum var. contorium, proves 

 to be a form of S. bavaricum '\Yarnst., thus confirming Bellerby's record of that species. At 

 the conclusion of the paper a list of the specimens in the exsiccatae is given, named according 

 to Wheldon's Synopsis of European Sphagna. Fifty-two numbers are included, with notes 

 and synonymy under each. — K. M. Wiegand. 



BOTANICAL ABSTRACTS, VOL. IV, NO. 1 



