\ 70 P. Graebner. — Potamogetonaceae. 



Wood, J. M. (Natal) 94 P. pusillus — 4 54 P. crispus — 490 P. lucens — 491 P. natans 



— 941 P. obtusifolius A.D. — 962 P. obtusifolius — 962 P. pusillus — 4300 P. javanicus — 

 4 889, 304 5 P. lucens var. longifolius — 3020 P. natans — 3055 P. obtusifolius — 3055 P. 

 pusillus var. africanus — 300 P. javanicus. 



Wrlght, C. (China u. Liukiu) 320 P. malainus — 324 P. pusillus — 322, 323 P. crispus 



— 326 Zannichellia palustris pedicellata. 



Wright, C. (Cuba) 84 Diplanthera Wrightii — 85 Cymodocea manatorum — 603 mixta 

 P. malainus? P. fluitans (occid.) — 604 P. fluitans (occid.) — 3202 P. fluitans — 3203 P. Claytoni 

 3204 P. hybridus — 3205 P. pauciflorus — 374 4 P. Zizii — 8202 P. fluitans (occid,. 



Wright, C. (Neu-Mexiko) 675 P. fluitans — 676 P. Zizii — 677 P. pusillus — 1676 P. 

 lucens — 4 891, 4 893 P. fluitans — 4898 P. pauciflorus. 



Wnllschlaegel (Guyana) 849 Ruppia maritima var. minor. 



Zeyher (Kapland conf. etiam Eckion et Zeyher) 4733 P. pusillus africanus — 4328 P. 

 pectinatus. 



Zollinger (Java) 3778 P. malainus — 3784 P. polygonifolius. 



Zollinger (Sumatra) 4 659 P. sumatranus — 3778 P. sumatranus. 



