BIBLIOGRAPHY 



411 



Warming, E. (1883!) 

 [P- 245] 



Warming, E. (i88s 2 ) 

 [Figs. 76 and 77, 

 p. 115, 79, p. 116] 



Warming, E. (1909) 

 [p. 291] 



Webber, H. J. (1897) 

 [p. 213] 



Botanische Notizen. Bot. Zeit. Jahrg. 41, 1883, pp. 



193-204. 



(In section 2, "Zur Biologic der Keimpflanzen," pp. 200-203, 



the author refers to the development of long root-hairs, at the 



junction of root and hypocotyl, which attach the seedlings of 



certain water plants to the substratum.) 



Studien iiber die Familie der Podostemaceae. 

 Engler's Bot. Jahrbiich. Bd. iv. 1883, pp. 217-223, 

 5 figs. 

 (A German version of part of the author's work on this family.) 



(Ecology of Plants, xi + 422 pp. Oxford, 1909. 

 (This English version of the author's well-known book contains 

 sections dealing with aquatic and marsh plants; see especially 

 pp. 97-100 and 149-190.) 



The Water Hyacinth, and its relation to navigation 

 in Florida. U.S. Depart, of Agriculture. Division of 

 Botany. Bulletin, No. 18, 1897, 20 pp., i pi., 4 text- 

 figs. 



[An account of the excessive luxuriance of Piaropus crassipes, 

 (Mart.) Britton, Eichhor.nia speciosa, Kunth, = Eichhornia 

 crassipes, (Mart.) Solms.] 



Observations sur une espece nouvelle du genre 

 Wolffia (Lemnacees). Ann. des sci. nat. Ser. in. 

 Bot. T. 12, 1849, pp. 155-173, i pi. 

 (The author discovered in Brazil a minute species of Wolffia, 

 which he named W. brasiliensis. Twelve of the flowering plants 

 could be accommodated on one frond of Lemna minor.) 



Weddell, H. A. (1872) Sur les Podoste"macees en general, et leur distribution 

 [pp. 113, 295] geographique en particulier. Bull, de la Soc. bot. de 

 France, T. xix. 1872, pp. 50-57. 



(This paper is based upon the author's own observations in 

 Brazil. Stress is laid upon the very local distribution of many 

 of the Podostemaceae.) 



Weinrowsky , P. ( 1 899) Untersuchungen iiber die Scheiteloff nung bei Wasser- 

 [pp. 261, 266, 269] pflanzen. Fiinfstiick's Beitrage zur Wissensch. Bot. 

 Bd. in. 1899, pp. 205-247, 10 text-figs. 



(An extremely important account of the apical openings of the 

 leaves of water plants.) 



Weddell, H. A. (1849) 

 [pp. 80, 300] 



Weiss, F. E.) 



and 



Murray, H. ) 

 [P- 303] 



On the Occurrence and Distribution of some Alien 

 (1909) Aquatic Plants in the Reddish Canal. Mem. and 

 Proc. of the Manchester Lit. and Phil. Soc. Vol. 53, 

 1909, No. 14, 8 pp., i map. 



[The authors show that Naias graminea (Del.) var. Delilei 

 (Magnus), recorded in Bailey, C. (1884) as occurring in the 

 warm water of this canal, has now disappeared. Certain alien 

 Algae are also discussed, and the distribution of Vallisneria 

 spiralis, which was planted here forty years ago.] 



