112 PENTANDRIA — DIGYNIA. [Ilelosciadiiim . 



53. Apium. Linn. Celery. 



1. A. graveolens, L. (^Smallage or tvild Celery^. E. Bot. t. 

 1210. 



Marshy places, especially near the sea ; not unfrequcnt in England. 

 Musselburgh, Scotland. Fl. Aug. $ . — Stetn furrowed, 2 feet high. 

 Leaves ternatc ; leaflets large, wedge-shaped, lobed and cut at the ex- 

 tremity : the lower leaves are upon long stalks with tiicir leaflets 

 rounder and truncate at the base. Umbels often sessile ; peduucled ones 

 of kw flowers. — This is the origin of our garden Celery. 



54. Petroselinuji. Hoffm. Parsley. 



1. P. * sativum, HoflFin. (^common Parsley); leaves decompound 

 shining, lower leaflets ovato-cuneate trifid and toothed, upper 

 ones lanceolate nearly entire, partial involucres filiform. JBorr. 

 in E. Bot. Suppl. t. 2793. — Apium Petroselinum, L. 



Frequent on old walls, especially in the south-west of England. 

 Blarney Castle, near Cork. Fl. June, July. $ . — I introduce this at the 

 suggestion of my friend Mr Edward Forstcr, who remarks that it has a 

 stronger claim to a place in a British Flora than many plants that are 

 universally admitted. 



2. P. segetum, Koch, (corn Parsley); radical leaves pinnated, 

 leaflets ovate lobed cut and serrated, upper leaves with linear 

 very imperfect leaflets, rays of the umbels few and unequal. — ■ 

 Sison segetum, L. — E. Bot. t. 228. 



Moist fields, chiefly on calcareous soil, in several parts of the middle 

 and south of England. Sea-shore, between Bognor and Little Hamp- 

 ton : and between Esher and West Moulsey, Surrey. Fl. Aug. 0. or 



^ . — 1 foot to H high, wiry, spreading, branched. Leaves few, mostly 

 radical. Universal involucre of about 2 leaves. Fruit ovate, strongly 



ribbed. 



55. Trinia. Hoffm. Honewort. 



1. T. glaherrima, Hoftm. (glabrous Honetcort) ; glabrous, 



leaves tripinnate, leaflets linear filiform, involucre none Pim- 



pinella dioica, E. Bot. t. 1209. — Seseli pumilum, L. (Sm.). 



Limestone, rare. Near Bristol on St Vincent's Rocks ; at Uphill, 

 Somersetshire ; Whorle Hill, Somerset ; near Athboy, county of Meath, 

 Ireland. Fl. May, June. 1^ — Whole herb glaucous-green, pale, re- 

 markable for the narrow segments of its leaves, and its d\(£^c\0ViS flowers. 

 Moot fusiform. 



56. Helosciadium. Koch. Marsh- wort. 



1. H. nodijlorum, Koch, {procumbent Marsh-ivort) ; stem pro- 

 cumbent, leaves pinnate, leaflets ovate subequally serrated, um- 



'bels sessile opposite to the leaves. — Siiim nodiflonim, L E. 



Bot. t. 639. 



Sides c." lakes and rivulets. Fl. July, Aug. 1^ \\ — 2 feet high. 



Leaflets of the radical leaves sometimes with a lobe at the base, on the 

 upper margin. Petals slightly incurved at the apex. 



2. 11. repens, Koch, (creeping Marsh-icort); stem creeping-. 



