30 CRUCIFERiE. [Subularia. 



glaucous, and as well as the stem, glabrous. Br. Fl. I. p. 294. E. 

 Fl. v. iii. p. 184. E. Bot t. 1660. 



Sea-coast, in sandy or stony soils, but not very general. Sandy 

 coast between Portmarnock and Malahide. Strand near Bantry ; Mr. 

 J. Drummond. Fl. June. % . 



22. Raphanus. Linn. Radish. 



Pod without valves. Cotyledons conduplicate. (O > > ) . Calyx: 

 erect. Br. — Name, pa, quickly, and (paivofiai, to appear; 

 from its rapid vegetation. Tetradynamia Siliquosa. 



1. R. Raphanistrum, Linn. Wild Radish or jointed Charlock. 

 Leaves simply lyrate ; pods of one cell, jointed, striated. Br. 

 Fl. 1. p. 310. E. Fl. v. iii. p. 226. E. Bot. t. 856. 



Corn fields, frequent. Fl. June, July. ©.—One foot to one foot 

 and a half high. Leaves stalked, rough. Flowers yellow, veined. 



2. R. maritimus, Sm. Sea Radish. Leaves interruptedly 

 lyrate; pods of one cell, jointed, striated. Br.— Br. Fl. 1. p. 

 310. E. Fl. v. iii. p. 226. E. Bot. t. 1643. 



Sea coast, near the salt works, at the Curren of Lame ; Mr. Tem- 

 pleton. On the shore, south side of the Hill of Howth, where it was 

 first observed by the late Mr. Underwood. Fl. June. $ .—Three to 

 four feet high. All the leaves rough, and the lobes toothed. Flowers 

 rather large, yellow. 



Suborder DiPLECoLOBEiE. De Cand. 0|| || || 



Cotyledons incumbent, linear, folded twice in a transverse direction 

 (bicrures). Seeds depressed. 



Tribe XI. Subulariece. De Cand. 



Silicula oval ; septum elliptical ; valves convex ; cells many-seeded ; 

 stigma sessile ; cotyledons twice folded. 



23, Subularia. Linn. Awl-wort. 



Pouch, oval, pointless, many- seeded. Valves turgid. Cotyledons 

 incumbent (O || ), linear, curved. Hook. — Name, subula, an 

 awl, the leaves being subulate or awl-shaped. 



Tetradynamia. Siliculosa. 



1. S. aquatica, Linn. Awl-wort. Br. Fl. 1. p. 299. E. Fl. 

 v.iti.p. 157. E. Bot. t. 732. 



Shallow margins of alpine lakes, rare in Ireland. In a lake on 

 Milrea mountain, County of Mayo, fifteen hundred feet above the 

 level of the sea. Lough Carlan, a little north-west of the Gap of 

 Barnesmore, Donegal ; Mr. E. Murphy. Said to have been found 

 in Lough Neagh, by Sherrard. Fl. July. 0. — Roots of numerous, 

 long, white fibres. Leaves few, radical, awl-shaped, one to three inches 

 long. Scape two to four inches high. Flowers small, which have 



