46 THE FLORAL LIST. 
POTAMOGETON CUSPIDATUS, Sm. =P. ZOSTERIFOLIUS, Schum. 
POTAMOGETON DECIPIENS, Nolte. 1883, Beeby. +16. : 
POTAMOGETON DENSUS, L. 1836, Dodsworth. —7, 10, 12, 18. 
POTAMOGETON FLABELLATUS, Bab. =P. INTERRUPTUS, Kit. 
POTAMOGETON FRIESII, Rupr. 1857, Bogg. +4, 8,9, 12, 14, 18. 
POTAMOGETON GRAMINEUS, Fr. =P. HETEROPHYLLUS, Schrad. 
POTAMOGETON HETEROPHYLLUS, Schreb. 1877, Fowler. +1, 3, 12, 13, 
14, 16. 
POTAMOGETON INTERRUPTUS, Kit. 1876, Fowler, +4, 6, 8, 9, 12, 13. 
v. SCOPARIUS, Fryer. 1891, Fowler. +4, 9, 12. 
POTAMOGETON LUCENS, L. 1836, Dodsworth. —4, 5, 7, 8, 15. 
v. ACUMINATUS, Fr. 1884, Beeby. +16. 
POTAMOGETON MUCRONATUS, Schrad. =P. FRIESII, Rupr. 
POTAMOGETON NATANS, L. 1815, Peck. —6, 10, 17. 
POTAMOGETON OBTUSIFOLIUS, Mert. & Koch. 1849, Carrington. + 4, 5, 13- 
POTAMOGETON PECTINATUS, L. 1849, Carrington. —5, 10, 15, 16. 
POTAMOGETON PERFOLIATUS, L. 1836, Dodsworth. —4,5, 8,15, 17, 18. 
POTAMOGETON PLANTAGINEUS, Du Croy. =P. COLORATUS, Hornem. 
POTAMOGETON POLYGONIFOLIUS, Pourr. 1876, Fowler. +1, 2,3, 5,7, 16. 
POTAMOGETON PRELONGUS, Wulf. 1849, Carrington. +6, 13, 14. 
POTAMOGETON PUSILLUS, L. 1856, Thompson. —2, 5, 6, 13, 17, 18. 
v. TENUISSIMUS, Koch. 1883, Beeby. +7, 9, 14, 16. 
POTAMOGETON RUFESCENS, Schrad. =P. ALPINUS, Balb. 
POTAMOGETON ZIZI, Roch. =P. ANGUSTIFOLIUS, Presl. 
POTAMOGETON ZOSTERIFOLIUS, Link. 1856, Fowler. +9.* 
POTENTILLA ANSERINA, L. 1799, Young. -+all.- 
POTENTILLA ARGENTEA, L. 1872, Streatfeild. +10, 11. 
POTENTILLA COMARUM, Nestl. =P. PALUSTRIS, Scop. 
POTENTILLA ERECTA, Hampe. 1815, Peck. —18. 
POTENTILLA FRAGARIASTRUM, Ebrh. =P. STERILIS, Garcke. 
POTENTILLA FRUTICOSA, L. 1896, Mason. +13. 
POTENTILLA ITALICA, Lehm. =P. REPTANS x ERECTA. 
POTENTILLA PALUSTRIS Scop. 1799, Young. —3, 4,9, 14, 15, 16, 17, 18. 
POTENTILLA PROCUMBENS, Sibth. 1866, Cole. +1, 3, 10, 13. 
POTENTILLA REPTANS, L. 1820, Ward. -+all. 
POTENTILLA REPTANS x ERECTA. L. 1905, Larder. +1, 8. 
