317 



HYPERICUM DESETANGSII Lamotte IN BRITAIN. 



By C. E. Salmon, E.L.S. 



(Plate 528.) 



About ten years ago the receipt of a dried specimen of 

 Eyperieum, labelled H. duUum Leers, collected by the late Mi 

 T. ffi ton near Lewes, Sussex, caused me to examine: * number.* 

 examples, and to doubt the accuracy of the name [given. A fresh 

 specimen sent in 1908 strengthened the doubt, but ttamih »« a 

 was not sufficient foundation to build upon. I visited the .locality 

 a year or two later, but no flowering-heads could be seen it 

 wal not until this season that time permitted a second visit with 

 most satisfactory results. On a bushy hillside of the , ch att we re 

 five or six splendid heads of a most showy St. John sWort, at 

 first sight not unlike H. perforatum, which grew close by but on 

 closer examination abundantly distinct ; it was, as I had hoped, 



^Se^lf S*-**- this plant was described b 

 DesEtangs in Mem. Soc. Agricult. de l'Aube , extr, V-fO^ )• 

 and was also satisfactorily distinguished by BeUynok (Fl • Nam". 

 31 1855), who named it H. intermedium, with the following 

 descrinti k--''Tiges de 3-9 decim., fermes, dressees, rameuses, a 

 4anX peu saillants et non ailes. Feuilles ovales-oblongues, 

 Ltefpa-mees de gros points noirs ^^"^^ 

 tres-nombreux ; a nervures non reticulees.—Sepales ^Qeoies 

 acumTnes Pekles strips de noir, depassant longu ^ent le calme . 

 Fleurs assez grandes, d'un jaune dor6, en pamcules terminates 



In 1874 Lamotte, in Bull. Soc. Bot. Br xxi. 121, named it 

 H. Desetangsn, and gave a long and careful description, of which 



'^ge^mu^ 



e U sst£crvertes de g pointe translucides *^W*»£to 

 dans lee feuilles sup&ieures, garmes sur ^^ ^^ fi X Fleurs 

 A nervures secondaires transparentes peu rami&ees. fleurs 

 erandes 24 aT8mtll.de diametre. . . . Sepales lanc6oles-etroits 

 S'us e'ntiers ou subdentes an sommet, glabres de f™ * 

 points noirs. . . . states d'un beau jaune dor^obovaJes.oblongs, 

 L-ondis an sommet, sane points noirs sur le faces ^»^' ; 



long. . • Graines tres-petites, a peine 1 mill, de long . . . 



"^Lamotte notes that it may be distinguished by its £>™«U 

 «tpm shane of leaves, less narrow sepals, to., from H.perjoramm , 

 bvTt; tonsluceutly dotted leaves with veins less anastomosing, 



JOUHHAL OP BOTANY.-VOL. 51. [NOV. 1913.] 2 B 



