PENTANDRIA— DIGYNIA. Liousdcum. 83 



o 



I 



Smyrnium tenuifolium nostras. Rati Hist. v. 3. 2J4. Dill, in Rail 



Sijn. 209. t. 8. 

 Cornwall Saxifrage. Pet. H. Brit. t. 26./. 9. 



In bushy fields in Cornwall. 



Fii-st found by Mr. Stevens. Dill. About Bodmin. Mr. Penning- 

 ton, Dr. Withering, Mr. E. Forster, and others. 



Perennial. Juhj. 



Root spindle-shaped, contracted at the crown, descending to a 

 great depth ; when woimded, discharging a yellow resinou.s 

 juice. Stem 2 or 3 feet high, solitary, erect, branched, round, 

 striated, roughish, purple at the base, slightly leafy. Leaves 

 deep green ; the radical ones on long, purplish, angular, rough- 

 ish footstalks, twice or thrice pinnate, broader than they are 

 long ; leajlets wedge-shaped, sharply cut, rough at the nerves 

 and margin with minute, depressed, bristly points. Stem-leaves 

 (mistaken by Linnaeus, in Dillenius's figure, for radical ones) 

 of 3 linear-lanceolate, acute, entire leaflets : the uppermost of 

 all simple. Umbels terminal, erect, of several general, as well as 

 partial, smooth, angular rays. General bracteas from 4 to 8, 

 lanceolate, or somewhat ovate, acute, much shorter than the 

 rays ; partial ones similar, equal to the partial rays. Cab/.r some- 

 what coloured, concave, conspicuous. Petals white, veiy slightly 

 irregular in the outermost flowers only, obovate, or inversely 

 heart-shaped, with an incurved, notched point. Anth. yellow, 

 Fl. Recept. none. Styles tumid, and almost globular, at the 

 base, erect, shorter than the petals ; subsequently spreading, 

 and finally horizontal, almost as long as the half-ripe fruit, per- 

 manent. Stigmas bluntish. Fruit, which I have not seen quite 

 ripe, solid, ovate, a little compressed, abrupt, crowned with the 

 whitish calyx, and spreading styles, and having .5 stout, promi- 

 nent, equal ribs, with deep intermediate furrows, to each seed. 

 Juncture apparently very narrow. Seeds ovate, flattened at the 

 inner side ; externally convex. All the Jlowers appear to be per- 

 fect and prolific. 



This rare plant, which remained, for half a century after its first 

 discovery, entirely unobserved, has been confidently asserted to 

 be the identical Danaa of AUioni, Physospermum of Cusson and 

 of Sprengel, Prodr. 19. The herbage of the two plants is in- 

 deed so very similar, that it is hardly possible to believe them 

 generically distinct. Physospermum however has separated 

 Jlowers, the barren ones most numerous, and is essentially cha- 

 racterized, as the excellent name imports, by having a loose, 

 . bladdery, inflated skin to the seeds ; the fruit being, in every 

 stage of growth, a double globe, smooth, polished, at length ac- 

 quiring slightly prominent ribs, and being crowned with the 

 strongly recurved styles. The seeds within are solid, nearly hemi- 

 spherical, irregularly furrowed. Of this genus there are 2 spe- 

 cies, 1st Ph. nquih'gifoUum, which is Allinni's Danaa; Laser- 



