

ADDITIONS AND CORRECTIONS 601 



An Herbaceous aquatic : leaves alternate, entire, peltate, floating; flowers ax- 

 illary, solitary, pedunculate. Nat. Ord. 7. Lindl. Hydropbltideje. 



1. H. purpurea, Mx. Leaves elliptic, centrally peltate ; peduncles 

 solitary, 1 -flowered. Beck, Bot. p. 19. Icon, Mx. Am. 1. tab. 29, 

 Brasenia Hydropeltis. Muhl. Catal. p. 55. Torr. Comp. p. 228. 



B. peltata. Pxirsh, Am. 2. p. 389. Nutt. Gen. 2. p. 24. Bart. Phil. 



2. p. 26. Ell. Sk. 2. pi 66. 



Purple Hydropeltis. Vulgo — Water-target. 



Plant purplish green. Root perennial. Stem varying in length with the depth 

 of water (1 to 10 feet long, Ell.), slender, and, with the peduncles, petioles and under 

 surface of the leaves, coated with a transparent gelatinous slime. Leaves 2 to 3 or 

 4 inches long, and an inch and half to 2, or 2 and a half inches wide, oval, very en- 

 tire, centrally peltate, and floating on the surface of the water, somewhat crowded 

 near the summit of the stem, the upper surface smooth and shining, with about 

 eleven nerves radiating from the centre ; petioles 6 to 12 or 15 Inches long, slend- 

 er. Flowers brownish-purple, solitary, axillary ; peduncles 2 or 3 to 5 or 6 inches 

 long ; sepals about half art inch long, linear-elliptic ; thickisb, colored ; petals long- 

 er, thinner and membranaceous; anthers dark purple. Carpels oblong, a little 

 ventricosc, acuminate and tipped with the persistent style. 



Hob. Pigeon-creek, above Pughtown : rare. Fl. June— July. Fr. Aug.— Sept. 



Obe. Collected in Aug. 1836, by Mr, JossrH Rinehart. The only known spa- 

 des of the genus. 



Page 328. Next after Ranunculus pusillus, insert 



4.* R. reptans, L. Stem filiform, geniculate, creeping; joints 1- 



flowered ; leaves linear-lanceolate, and subulate-linear, entire, remote, 



smooth. Beck, Bot. p. 7. var. filiformis, DC. Torr. &c. 



R. filiformis. Mx. Am. 1. p. 320. Pers. Syii. 2. p. 102. JYutt. Gen. 



2. p. 23. Bart. Am. 2. p. 101 (Icon, tab. 70. Jig. 2.). BigeU Bost. p. 



224. Eat. Man. p. 296. 



Creeping Ranunculus* 



Root perennial. Stem 6 to 12 inches long, very slender and thread-like, smooth, 

 prostrate, geniculate, or forming a series of undulating curves of about an inch in 

 span, throughout its whole length, and generally sending out roots and leaves at 

 the joints. Leaves few, simple, rather erect, half an inch to an inch long, lanceo- 

 late, or subulate-linear, rather obtuse,— often spatulate-lanceolate, or three-fourths 

 of their length narrowed to a petiole. Flowers solitary at the joints, small ; pe- 

 duncles half an inch to an inch and half long; sepals roundish, obtuse, spreading ; 

 petals yellow, obovate. 

 Hob. Margin of the Schuylkill, above Pughtown : rare. Fl. July— Aug, Fr. Sept. 



Obs. Collected in Aug. 1836, by Mr. Joseph Rinehart. This seems to be 

 identical with the R. reptans, as figured in Li ghtfooVs Flora Scotica; and I incline 

 lo concur with Dr. Beck, in the opinion, that it is quite distinct from R. Flammula 

 of which Prof. Hooker makes it a variety. 



Page 340. Next before Mentha canadensis, insert 

 3.* M. abvensis, L. Leaves ovate-lanceolate, oblong, or ovate, cu- 

 neately tapering, or rounded, at base, serrate, petiolate ; bracts subulate- 

 lanceolate, about as long as the subcampanulate calyx. Benth. Lab. 

 p. 178. 



Field Mentha. 



51 



