108 BRITISH CHAROPHYTA. 



Hartman, Carl Johann, 'Handbok i Skandinaviens Flora/ 



pp. 376-8. Stockholm, 1820. Ed. 3, pp. 258-60, 1838; 



ed. 4, pp. 356-8. 1843. 

 Hassall, Artliiir Hill, ' A History of the British Fresh- 

 water AlgEe/ 1, pp. 77-100; II, tt. 61-2. London, 



1845. 

 Hayren, Ernst, " Algologisclie Notizen aus der Gegend von 



Bjorneborg," 'Meddel. Soc. Fauna & Flora Fenn,' 190-8, 



pp. 118-4. Helsingfors, 1909. 

 Hedwig, Joanne, ' Theoria generationis et fructificationis 

 , Plantarum Cryptogamicarum Linnsei,' pp. 125-9, tt. 



32-3. Leipzig, 1784. 

 Hemsley, William Botting. See Bary, A. de. 

 Henfrey, Arthur. See Biaun, A. 

 Henriques, J. A., 'Contrib. Fl. Crypt. Lusit.' pp. 20-1. 



Coimbra, 1880. 

 Henslow, J. S., " On the Fructification of the Genus Cliara," 



'Magazine of Nat. Hist.' V, pp. 348-49, with adden- 

 dum by "J. D." [? Denson], pp. 349-50. London, 



1832. 

 Hertzsch, "Zur Chara filiformis," 'Hedwigia,' I, pp. 81-2. 



Dresden, 1855. 

 Hill, Arthur W., "Note on a Species of Chara with a Spinous 



Cortex," 'New Phytologist,' III, pp. 69-73. London, 



1904. 

 Hirn, Karl E., "Finska Characeer," ' Meddel. Soc. Fauna & 



Flora Fennica,' XXVI, pp. 91-9. Helsingfors, 1900. 

 Hitchcock, Romyn, " Preliminary Note on a Differential 



Staining of the Cytoplasm of Characeee," 'Bull. Torrey 



Bot. Club,' XL VI, pp. 375-9. New York, 1919. 

 Holtz, Ludwig, " Die Characeen Neuvorpommerns mit der 



Insel Riigen u. der Insel Usedom," 'Mitth. d. Naturwiss. 



Ver. f. Neuvorpommern,' XXVIII. 1891. 



Reprinted and paged, 3-60. Greisswald, 1891. 

 ' Kryptogamenflora d. Mark Brandenburg,' IV, i, 



"Characeae." Leipzig, 1903. 

 Hooker, Sir William Jackson, 'Flora Scotica,' II, pp. 108-9. 



London, 1821. 

 ' British Flora,' II, i (also forming Vol. V of ' Smith's 



English Flora'), pp. 242-7. London, 1833. 



'Icones Plantarum,' VI, t. 532. London, 1843. 



Hermann, Georg, ' Studien iiber die Protoplasmastromung bei 



den Characeen,' pp. 1-7. Jena, 1898. An abstract of 



this by S. le M. Moore, 'Journ. Bot.' XXXVI, pp. 453-4. 



London, 1898. 



