Mr. J. Ball on some British species of the genus (Enanthe. 5 



quentia pedunculos elongatos rigidos amplectentia vagina petiolari 

 successive breviori, pinnata pinnulis linearibus tripartitis simpli- 

 cibusve, inferioribus valde elongatis ; suprema caulis et peduncu- 

 lorum linearia elongata. Pinnules foliorum omnium margine carti- 

 lagineo minute denticulato in mucronem producto. Umbellae soli- 

 tariae, terminales, 6 — 15-radiatse, convexse ; accessorise primarium 

 sequantes aut superantes. Involucrum universale nunc nullum, 

 nunc 1 — 6-phyllum ; foliis setaceis, inaequalibus, umbella multo 

 brevioribus. Umbellulse multiflorae, densae ; floribus externis 

 saepe sterilibus longius pedicellatis, internis subsessilibus. Invo- 

 lucella polyphylla ; foliolis lineari-lanceolatis, acuminatis, inaequa- 

 libus, pedicellos florigeros exteriores subaequantibus. Petala in- 

 aequalia, praesertim florarum sterilium, lata, obcordata, ad medium 

 fissa, alba nervis coloratis : segmenta marginis calycini liberi lato- 

 lanceolata, inaequalia, duo exteriora longiora. Diachenium 



An (Enanthe gathered in the island of Ischia, which seems to 

 be the (E. pimpinelloides of Bertoloni (Fl. Ital. in. 236), differs 

 in having the pinnules of all the stem-leaves linear, the sheaths 

 longer, and sometimes wants the sterile external florets. The 

 diachenium is of nearly equal thickness throughout, crowned with 

 the erect persistent calyx, and somewhat longer than the stiff, 

 slightly diverging styles ; the very short adpressed pedicels form- 

 ing a callous ring at the base. I have this form also from near 

 Pisa. 



What principally distinguishes this plant is the mucronate 

 pinnules of all the leaves ; besides which it differs from (E. La- 

 chenalii in the fruit and the involucella, and from (E. silaifolia 

 and <E. peucedanifolia in many obvious points. (E. Jordani, Ten., 

 which I have gathered near Psestum, differs mainly by the very 

 crowded umbel, and the longer sheathing petioles. I do not find 

 all the leaves bipinnate, as Bertoloni describes them, the upper- 

 stem leaves being pinnate with very long linear segments, and 

 ultimately simple linear elongate ; my plant, so far, looking like 

 an intermediate variety. 



I have no doubt as to the identity of the Gloucestershire plant 

 with the foreign ones above mentioned, and the Toulouse speci- 

 men referred to by Mr. Babington (Man. Br. Bot. 130) seems 

 to agree with my description, so that (E. pimpinelloides must re- 

 sume its place in the flora of Britain. 



I next come to the (E. peucedanifolia of Smith, Hooker, Ba- 

 bington, and all British botanists, but not of Pollich, or the 

 principal foreign writers. I agree with Bertoloni in confirming 

 the opinion of Bieberstein (Fl. Tauro-Caucas. iii. 232), that his 

 (E. silaifolia is the (E. peucedanifolia of Smith (Eng. Bot. t. 348). 

 I found this plant in a salt-marsh near Portmarnoch, county 

 Dublin, Ireland, and have received it from the banks of the 



