176 ENGLISH BOTANY. 



SPECIES I.-PHYSOSPERMUM CORNUBIEN SE. B.C. 



Plate DCXXX. 

 P. Cornubiense et P. aquilegifolium, D. C. Prod. Vol. IV. p. 246. 

 P. aquilegifolium, Koch. Gr. &, Godr. F). de Fr. Vol I. p. 748, 



Radical leaves on long stalks, tri-ternate, glabrous. Stem-leaves 

 with short dilated petioles, those; at the base of the branches often 

 without any lamina. 



In bushy places. Very local. About Bodmin in Cornwall, 

 and near Tavistock, Devon. 



England. Perennial. Summer and Autumn. 



Rootstock slender, brown. Stem erect, 1 to 4 feet high, slender, 

 furrowed, paniculately branched in the upper part. Radical leaves 

 on very long stalks, deltoid in outline, with 3 stalked primary 

 leaflets, each of which consists of 3 stalked secondary leaflets, and 

 these again of 3 3-cleft leaflets, the central one stalked, the lateral 

 ones sessile; ultimate leaflets cut towards the apex. Stem with 

 leaves only at the bases of the branches, the lowest one generally 

 with 3 linear-lanceolate entire or cleft leaflets, the uppermost ones 

 reduced to lanceolate sheaths without any lamina. Umbels on 

 long stalks, with 10 to 20 glabrous furrowed rays, which are slightly 

 curved inwards, 1 to 2 inches long; pedicels numerous, longer 

 than the fruit. Involucre of few lanceolate leaves ; involucel dimi- 

 diate, of 1 to 5 linear acuminate leaves. Flowers not distinctly 

 radiant, $ inch across. Calyx-teeth short, deltoid- triangular. 

 Cremocarp $ inch long and about as broad, consisting of 2 sub- 

 globular chestnut-brown bladder-like mericarps, with the ridges 

 nearly obsolete. Stylopods large, conical. Styles longer than the 

 stylopods, reflexed. Plant dark-green, glabrous, with the edges of 

 the leaves rough with small prickles. 



I am indebted to Mr. T. N. Archer Briggs for the ripe fruit of 

 this species, from near Calstock, Cornwall. 



P. aquilegifolium seems to me not distinct from P. Cornubiense 

 even as a variety. 



Cornish Bladder-seed. 



GENUS XXXVIII.—S MYRNIUM. Linn. 



Calyx-limb obsolete. Petals lanceolate or elliptical, entire, 

 acuminate, with the point incurved. Cremocarp short, laterally 

 compressed, sub-didymous ; columella free, bipartite ; mericarps 

 sub-globular, not inflated, with 5 ridges, the 3 dorsal ones elevated, 

 the lateral pair indistinct ; interstices each with a single vitta. 

 Seed with the edges of the albumen involute, so that a cross 



