32 PAPAVERACEAE 



not be mistaken for this form, which has been seen near the Oxford 

 Gas-works, by the railway at Didcot, and elsewhere. 



Near Hungerford a form has occurred with leaves resembling 

 P. Argemone, but the capsules were typical in shape and glabrous. 

 A form with striped petals has been noticed at Didcot, and a white 

 flowered form at Wootton. 



P. RhOEAS X DUBIUM. 



A plant having the above parentage occurred at Kintbury. 

 The leaves were intermediate in character and the petals in the 

 calyx just before expansion white ; in Ehoeas in the same condition 

 they are pale red, in clubium nearly white. Probably a considerable 

 number of plants referred to var. strigosum are really of hybrid origin. 



P. Blioeas is an abundant plant on the Upper Greensand formation, 

 and also especially noticeable on some of the Tertiary beds when of 

 a sandy character ; the cornfields on the shoulders of some of the hills 

 overlooking the Thames valley between Goring and Reading, present 

 a beautiful sight from the profusion of growth of the Red Poppy. 



P. Rhoeas occurs in all the bordering counties. 



P. dnbium, Linn. Sp. PI, 1196 (1753). Long Smooih-headed Poppy. 



Argemone capitulo longiore glahro, Morison, Hist. Ox. ii. 279 ( i68o,\ 

 Top. Bot. 22, Syme, E, B. i. 89, t, 59, Nyman, 24, Fl. Oxf. 18. 

 Colonist. Agrestal. Cornfields, waste places, wall-tops, &c. Common 



and generally distributed. A. May- August, 

 First record. Walls and banks near the town [Marlow], Mr. G. G. 

 Mill in Phyt. i. 984 (1843) ; and also included by Mr. T. B. 

 Flower in Robertson's Env. of Reading (1843). 



P, duhium has been divided by critical continental botanists into 

 several species, five of which have been beautifully figured in Jordan 

 and Fourreau's Icones ad Floram Europae. In the Flora of Oxfoulshire 

 I kept one of these species distinct from the type, but in the present 

 work P. Lecoqii is placed as a variety of P, duhium, since it appears 

 to be only one of a series of forms similar to those figured in Jordan's 

 work, and I find the characters given for it are by no means con- 

 stant. The latex, which is said to be yellow in P. Lecoqii, has been seen 

 of that colour in plants with the characters of P. Larnottei. This latter 

 is the typical plant and more frequent with us. 



Var. Lecoqii (Lamotte, Not. sur les Pap, Dub. 429, as a species). 

 Syme, I.e. t. 60. 



First recorded by the Author in Rep. of Bot. Rec. Club, 1881. 



1, Isis. Wytham. Cumnor, 



2, Ock. Hinksey. Steventon. Tubney. Marcham. 



3, Pang. Field between Langley Wood and Sandy Lane, W. M. 



Rogers. Shaw, Jackson. Pangbourn. Moulsford. 



