236 PROCEEDINGS COTTESWOLD CLUB 1914 



repens. Here is a description of var. longifedunculatum 

 F. Schultz. Stem very long, slender, rooting at the lower 

 nodes, internodes long or very long ; leaves with long petioles, 

 not nearly so erect as in var. vulgare. Leaflets generally 

 5 to 7, ovate or broadly ovate, coarsely serrate, occasionally 

 with small lobes. Peduncle long, generally longer than the 

 umbel-rays. Rays 4 to 7. Involucre usually present, i.e., a 

 small leaf-like process (or several of them) at the base of the 

 rays of the umbel — a rare thing in H. nodiflorum. 



Now, in exposed parts of some of the localities where 

 this variety grows, e.g., among short herbage, or on mud, 

 occurs sometimes the form of it which is, as I have said, very 

 easy to confuse with true H. repens, e.g., at GuUane, on Port 

 Meadow, by Oxford, etc., and which I will venture to name 

 /. simulans. In essentials it corresponds to var. longipedun- 

 culatum, but it is small in its parts, grows prostrate, and roots 

 at most or all of the nodes. It produces its leaves, as H. 

 repens does, mostly in tufts at the rooting points of the stem, 

 but it shades off by gradual degrees into obvious and typical 

 longipedunculatum, as is proved conclusively by a long series 

 of specimens from GuUane, and a less adequate supply from 

 Port Meadow. Schultz's variety, in fact, behaves exactly as 

 does type nodiflorum ; it is singularly susceptible to the 

 influences of environment, and, though its variations do not 

 form an exact parallel to those of the type, yet it actually 

 produces clearly distinguishable forms on one root (see B.E.C. 

 report, 1910, p. 564-5) and shades off from one extreme to 

 another in a series in the field, which at different points finds 

 varying amounts of cover, water, etc. And good Port Meadow 

 simulans developed in garden soil into longipedunculatum. 



To this variety I assign plants as follows : — 



Nantwich, Cheshire . . Hb. C. Bailey, f. simulans 



(Tilmire, Yorks. .. .. ,, ,. 



this is doubtful) 



Fakenham, Norfolk . . Hb. C. Bailey 



Port Meadow, Oxou. . . .. i. simulans 



Binsey Meadows, Oxon. . . Hb. G. C. Druce, f. simulans 

 Foxhall, Northauts 



Bungay. Suffolk . . Hb. Kew 



Bradwell, Suffolk . . Hb. H. C. Watson, f. simulans 



Sturbridge Fair Green, Cambs. Hb. C. C. Babington 

 Upware, near Cambridge . . 



Haddington, Cambs. . . Coll: Prof. Gliick, f. simulans 



As well as those from Haddingtonshire and Midlothian. 



