106 POM ACE JE. [Puteriara. 



County of Sligo. FL July, Aug. !. K)iie of the most elegant of 

 our native plants. Inflorescence similar to that of A. vulyaris ; but 

 the leaves are very different, and the leaflets are beautifully silky on 

 the under side. 



3. A. arvensis, Sm. Field Lady's Mantle* or Parsley Piert. 

 Leaves trifid, pubescent; lobes deeply cut; flowers sessile, axil- 

 lary. Br. FL 1. p. 70. E. FL v. i. p. 224. E. Bot. t. 1011. 

 Aphanes arvensis, Linn. 



Fields and gravelly soils, frequent. FL May July. 1{L. Stems 

 branched, leafy, four to five inches long, frequently prostrate. Leaves 

 alternate. Stipules large. Stam. varying in number. Germens one 

 or two. 



13. POTERIUM. Juss. Garden-Burnet. 



Flowers collected into a head, with three or four bracteas at the 

 base of each ; upper ones fertile. Barren ft. Calyx of four 

 deep segments. Corolla 0. Stam. 30 40, with very long 

 flaccid filaments. Fertile fl. Calyx tubular, contracted at 

 the mouth, with four deciduous teeth. Pistils 2. Stigmas 

 tufted. Pericarps 2, one-seeded, invested with the hardened 

 4-angled tube of the calyx. Name from poteriwn, a thinking 

 cup; the plant having been used in the preparation of a drink, 

 called in England a cool-tankard. 



Mon&cia. Polyandria. 



1. P. Sanguisorba, Linn. Common Garden-Burnet. Spines 

 none; stem somewhat angular. Br. FL \.p. 407. E. FL v. 

 iv.p. 147. E. Bot. J.860. 



Dry pastures and gravelly banks, more generally in the limestone 

 districts, frequent. FL July. 1. One to two feet high. Leaves 

 pinnate, with ovate, serrated leaflets. Flowers dull purplish. The 

 leaves smell and taste like cucumber, and are sometimes used in Eng- 

 land in salads. 



ORD. 28. POMACES. Lindl. Apple Family. 



Calyx inferior, 5-toothed ; the odd segment posterior. Petals 

 5, unguiculate, inserted in the throat of the calyx; the odd one 

 anterior. Stamens indefinite, inserted in a ring in the throat of 

 the calyx. Disk thin, clothing the sides of the limb of the 

 calyx. Ovariumfrom I to 5-celled, seldom spuriously 10-celIed; 

 ovules usually 2, collateral, ascending, very rarely solitary ; 

 styles from 1 to 5; stigmata simple. Fruit a pome, one to five- 

 celled, seldom spuriously 10-celled; the cndocarpium either 

 cartilaginous, spongy, or bony. Seeds ascending, solitary. 

 Albumen none ; emljryo erect, with flat cotyledons, and a short 

 conical radicle. Trees or shrubs. Leaves alternate, stipulate, 

 simple, or compound. Flowers in terminal cymes, white or 

 pink. 



