﻿148 NOTES ON KENTISH PLANTS OBSERVED DURING 189S. 



S?aujanium neglectum Beeby. About Ashford, Smeeth, Westen- 

 hanger, Headcorn, and Staplehurst, 15* Apparently more frequent 

 than restricted S. ramomm. 



Potamo,,eton acutif alius Link. Ditches near Appledore Station, 

 towards the village, 15.* 



P. Friesii Rupr. Pond near Harden, 16.* Mr. Bennett has 

 seen W. Kent specimens in herb, F. J. Hanbury. 



P. Berchtoldi Fieber. In two adjoining pools, about half-a-mile 

 east of Harden Station, 16 1; determined by Mr. Bennett, who 

 places it under P. pusillus as a variety, remarking that the leaves of 

 the Harden plant are narrower and shorter than in Fieber' s de- 

 scription. Its habit of growth is strikingly different from that 

 of ordinary pusillus, which is frequent in the district, the pools being 

 nearly choked with a dark green (almost black), tangled mass. On 

 July 20th the fruit was ripe and beginning to drop, pusillus being 

 scarcely in full flower at the time. I append some extracts trans- 

 lated from the original publication in Fieber' s Die Potamogeta 

 Bohmens (1838), pp. 40, 41. The plant is figured there, t. 4, 

 fig. 21. 



" Stems 2-2£ ft. long, filiform, stouter than in the last [P. 

 pusillus] , roundish, compressed, branched above, striate. Inter- 

 nodes 2-3 in. long, shorter in small and much-branched specimens, 

 the branches spreading in all directions. Leaves 2 in. long or 

 rather more, tapering to a fine point, or blunt with a fine capillary 

 point. All the leaves 3-ribbed from the base, the midrib with two 

 rather distant longitudinal nerves. The upper stem-leaves are 

 sometimes 1 in. long, dilated above, blunt, densely cellular for one- 

 third of the leafs length downwards, the ribs rather stronger than 

 usual, losing themselves in this cellular space. A gland on each 

 side at the base of the leaves, which half-clasp the joints of the 

 stem. Peduncle 9-12 lines, more rarely (in branching plants) 

 6-8 lines long, and 3-4 times the length of the 6-8-flowered spike, 

 which is 2-2f lines long. Spike 3 lines long in fruit. Flowers 

 larger than in P. ■pusillus and P. trichoides. Sepals obliquely elliptic, 

 crenate, their sides semiorbicular. Fruit nearly one-fourth larger 

 than in P. pusillus (1 line long), thick, roundish, irregularly 5-angled, 

 furnished with very small caruncles [tubercles?], which appear 

 particularly distinct when the fruit is in a dry state. Dorsal keel 

 finely caruncled, especially towards the base. Lateral keels angular. 

 Nut roundly 5-angled, pointed at the base and top. Cross-section 

 ovate, dorsal keel semiorbicular, prominent. Lateral keels divided, 

 rounded." 



The forms described are as follows : — 



mticronatus Fieber. Leaves blunt, with a fine capillary point. 



a. ramnsissimus Fieber. Internodes 9 lines long, the lower 

 ones shorter, branching from all the leaf-axils. Stem- 

 leaves 2 in. long, 1 line broad. Peduncle 6-8 lines long. 



b. simplex Fieber. Stem mostly simple, slightly branched 

 above. Internodes l|-2 in. long. Stem-leaves 1£ in., 

 peduncle 9-12 lines long. 



P. pusillus B. Cham et Schl. Linnsa, 2, p. 172. 



