81. POTAMACER. 583 
ovate-lanceolate; though this may in some measure be attributed 
to a selection of small or weakly examples to fit the paper of an 
herbarium. 
Alisma (ranunculoides) repens, Davies. 
Provinces - 7 - 9, etc. Wales and Scotland; Bab. Man. 
Syn. 1110. I have not kept distinct notes for A. repens; the two 
extremes of scapes “erect” and “ rooting” are connected by various 
intermediate states, not distinctly meeting either character. 
81. Potamacka. 
Potamogeton (pectinatus) flabellatus, Bab. man. 
Provinces 123845--891011. “England. Ireland.” 
Syn. 1119. Cyb. iii. 10. ‘ Not uncommon in England.” 
Potamogeton (eu-pectinatus) genuinus, E. B. 8. 
Provinces --345------- 13 14 15--18. And others. 
Syn. 1119. “ Frequent in England. Rare in Scotland.” 
Potamogeton (eu-pectinatus) scoparius, “ Wallr.” E. B. 3. 
Provinces -23---7--10. “DP. marinus, Huds.” 
Syn. 1119. Plentiful in South-England; Syme, in E. B. 3. 
Potamogeton gracilis, Fries. 
Province - 11. Cheviotland; Professor Oliver! 
Ambiguity. Dubious between gracilis and pusillus. 
Potamogeton mucronatus, Schrader. “P. compressus, Sm.” 
Provinces -- 3-5 ---9. In nearly all, by printed records. 
Native. Cyb. ni.12. It remains still impossible to give a proper 
account of the area and distribution of Smith’s compressus; that 
name having been so variously applied, usually to examples of 
pusillus, occasionally also to those of obtusifolius. From Devon to 
Orkney, by the Floras, etc. Shropshire; J. EK. Bowman! Surrey; 
Boswell Syme. Specimens from Stoke Heath, Warrington ; Syme 
in Eng. bot. ix. 49. 
Potamogeton (lucens) acuminatus, Schum. 
Provinces ---- 5---9. And in several others. 
Syn. 1126. Hereford; Rev. W.H. Purchas! Warwick; Mr. T. 
Kirk! Cheshire; Hon. J. B. L. Warren! Having kept no 
separate notes for this variety, I can now venture to cite three 
counties only, as shown by labels in my herbarium; although 
I have certainly seen the variety in others also. 
Potamogeton (lucens) decipiens, Nolte. 
Province 1. Canal at Bath, Somerset; Exchange Club sp. 
Syn. 1126. I possess only the leaves from the EK. C. 
