BIBLIOGRAPHY 



387 



Magnus, P. (1872) Untersuchungen iiber die Anatomic der Cymodoceen. 

 [P- *35] Sitzungs-Ber. d. Gesellschaft naturforsch. Freunde zu 



Berlin, 1872, pp. 30-33. 



(These notes are chiefly devoted to the occurrence of "Schlauch- 

 gefasse" in Cymodocea.) 



Magnus, P. (1883) Ueber eine besondere geographische Varietat der 

 [P- 332] Najas graminea Del. und deren Auftreten in England. 



Ber. d. deutsch. bot. Gesellsch. Bd. i. 1883, pp. 

 521-524. 



[This paper on a form of Naias graminea which grows in the 

 Egyptian rice fields should be read hi connexion with 

 Ascherson, P. (1874) and Bailey, C. (1884).] 



Magnus, P. (1894) Ueber die Gattung Najas. Ber. d. deutsch. bot. 

 Gesellsch. Bd. xn. 1894, pp. 214-224, i pi., 3 text- 

 figs. 



[A reply to the criticisms on Magnus, P. (I870 1 ) contained in 

 Schumann, K. (1892).] 



Die atypische Embryonalentwicklung der Podoste- 

 maceen. Flora, N.F. Bd. 5 (G.R. Bd. 105). 1913, 

 PP- 275-336, 4 pis., 41 text-figs. 



(A detailed comparative account of the embryo-sac and embryo 

 in the Podostemaceae, with a general discussion of the ecological 

 and morphological significance of the peculiarities observed.) 



Aldrovandia. Bull, de la Soc. bot. de France, T. vi. 

 1859, pp. 399-401. 



(The author of this note shows that many plants of Aldrovandia 

 may remain at the bottom of the water even in June, weighted 

 down by the remnant of the turion.) 



Marloth, R. (1883) Uber mechanische Schutzmittel der Samen gegen 

 [p. 241] schadliche Einfliisse von aussen. Engler's Bot. 



Jahrb. Bd. iv. 1883, pp. 225-265, i pi. 

 (A detailed account of the protective layers in seed coats, 

 including references to certain water plants. The paper con- 

 cludes with an index of the species studied.) 



Marshall, W. (1852) Excessive and noxious Increase of Udora Canadensis 

 [pp. 55, 210] (Anacharis Alsinastrum). Phytologist, Vol. iv. 1852, 



PP- 75~7 I 5- 



(An historical account of the introduction of this plant.) 



Marshall, W. (1857) Tne American Water-weed. Anacharis Alsinastrum. 

 [pp. 55, 210] Phytologist, Vol. n. N.S. 1857-8, pp. 194-197. 



[An additional note on the nuisance caused by this weed; see 

 Marshall, W. (1852).] 



Martens, G. von (1824) Reise nach Venedig. Ulm, 1824. 



[P- *35] E Tnis book contains (p. 623) an early reference to the hetero- 



phylly of Sagittaria sagittifolia. There is also a mention (p. 550) 

 of the part played by Zostera marina in the Venetian lagoons, 

 and its use from time immemorial in packing Venetian glass.) 



252 



