NOTES OF PLANTS OF THE NEIGHBOURHOOD OF OXFORD. 117 



leaves decaying' upwards. The leaves are triangular in outline, bipinnate, 

 and with wedge-shaped segments. This is the common form. I think 

 my earlier specimen may be the base of an old seedling, perpetuated by a 

 lateral shoot, a short, vertical rhizome being a common structure in the 

 TJvihelWftrcB. The stems of the other type are developed from lateral 

 buds in similar elongated submerged stems towards the autumn, the 

 parent stems afterwards breaking up, and decaying. Mine, I think, was 

 wholly a spring growth. I have since seen specimens of (E. pimpbieUoideSy 

 L., in the British Museum herbarium, collected by Mr. A. G. More in the 

 Isle nf Wight evidently early in the year, which show that in that species, 

 the mode of growth is just the same as in my specimen oiJiuviatUis. 



Ilieracium amplexlcaide, L. — Only to be found within the limits of the 

 Botanic Garden, where, at the foot of old walls, it is well established. 



FraxiiiHS lieterophijlla, Vahl. — The tree (of course planted) mentioned 

 by Walker still stands, though not very healthy, near the eastern end of 

 the broad walk in Christ Church Meadow. 



Llnaria purpurea. L. — Walls of churchyard, Iffley, Oxon. 



Lathraea squamaria, L. — Copse near Cumnor Hurst, Berks, but west of 

 the high-road. 



Teucrium Scordlum, L. — Banks of the Thames, Godstow, Berks, 

 H. Boswell. 



Lam'ium maculatum, \i., var. Irevigatum, L. — Island in the Cherwell, by 

 Christ Church Meadow, ahundant, but no doubt originally derived from 

 the Botanic Garden. 



Primula variabilis, Goupil. — Copse near Botley, Berks. 



ChenopodiuM miirale, L. — Near the railway station, Oxford. 



Polygonum mite, Schrank. — Port Meadow, Oxon ; probably to be found 

 in low ground near the Thames throughout its course. It occurs all along 

 the Middlesex bank. 



Aristolochia Clematitis, L. — Abundant and very striking in its exotic- 

 looking aspect on the side of a deep ditch bounding one side of part of 

 the precinct of the nunnery at Godstow, Berks, now used as a kitchen 

 garden. It has no relation to the present cultivation, but is the last 

 relic of the ancient use of the ground. 



Salix decipiens, Hoffm. — A large tree, mentioned in W^alker's ' Flora,' 

 stood in Christ Church Meadow near the " Barges," but was blown down 

 some years since. A small tree of what I take to be the same species 

 grows by the side of the bounding ditch. 



-S". Ilulfinnntiiana, Sm. — By the Thames between Iffley and Kcnnington 

 Island, Oxfordshire side. 



Leucoium (cstivum, L. — Osier Holt between IfHey and Sandford, also 

 Kenniiigton Island ; both on Oxfordshire side of river. 



Tulipa sylcestris, L. — By the path round Christ Church Meadow, espe- 

 cially close to tlie trunks of trees. A most stiuited state, hardly to be 

 recognized except from the bulbs, and never flowering. 



Gagea lutea, Ker. — I have seen a single specimen, obtained by the 

 Rev. T. 0. Marshall, from the Lathrcea locality on Cumnor Hurst, but I 

 never succeeded in tinding any more. 



Stratiotes aloides, L. — Pond in Magdalen Meadows ; originally planted, 

 and afterwards lost. Recently replanted by Professor Lawson. 



Potamogeton eu-pectinatus, Syme. — This seems to be the connnoncr 

 segregate in the Oxford waters. 



I. 2 



