1915] — Blake,—Neglected Names in Walter's Flora Tou 
Bot. Gaz. xi. 106 (1886)); the broad-leaved form hitherto chiefly 
known from New Jersey, of which good specimens collected by 
Rugel (number 370) in wet swamps of the Swanano Valley, North 
Carolina, in August 1841, are in the British Museum, becomes H. 
DENTICULATUM Walt. var. ovalifolium (Britton) Blake (H. virgatum 
ovalifolium Britton, Trans. N. Y. Acad. Sci. ix. 10 (1889)). Var. 
ovalifolium differs from both the other forms of the species not only 
in leaf-form but in its larger ovate or elliptic-oblong sepals, but does 
not seem specifically distinct. 
15. PRENANTHES AUTUMNALIS Walt. p. 193 (P. virgata Michx. 
Fl. ii. 83 (1803)). A good specimen is in the Walter Herbarium. All 
authorities, including Michaux himself, have referred Walter's P. 
autumnalis to P. virgata, but have failed to adopt the prior name. 
The Prenanthes alba B of Linnaeus (Sp. ii. 798 (1753)), based on 
Clayton 319, now in the British Museum, is also this species. 
16. Hyoseris biflora Walt. p. 194 = Kriata biflora (Walt.) Blake 
(Krigia amplexicaulis (Michx.) Nutt. Gen. ii. 127 (1818); for full 
synonymy see Standley, Contr. U. S. Nat. Herb. xiii. 356 (1911)). 
No specimen. | 
17. Chrysocoma acaulis Walt. p. 196 = VERNONIA ACAULIS (Walt.) 
Gleason, Bull. N. Y. Bot. Gard. iv, 222 (1906) (V. oligophylla Michx. 
Fl. ii. 94 (1803)). No specimen in Walter Herbarium. 
18. Gnaphalium undulatum Walt. p. 203 (not of L.) = PrTERO- 
CAULON PYCNOSTACHYUM (Michx.) Ell. Sk. ii. 324 (1824). Walter’s 
G. undulatum, a pure misidentification of the Linnaean G. undulatum 
(Sp. ed. 1. ii. 852 (1753); ed. 2. ii. 1197 (1763)), has been taken up 
by Small as Chaenolobus undulatus (Walt.) Small, Fl. S. E. U. S. ed. i. 
1236 (1903). This generic name by the way, was not Chaenolobus 
but Chlaenobolus (Cass. Dict. Sci. Nat. xlix. 337 (1827)), from xAatva 
cloak, and BáXXav to throw, in allusion to the deciduous scales of the 
involucre, and it is antedated by Elliott's Pterocaulon of 1824, Wal- 
ter’s misidentification of the Linnaean species has no claim to adoption 
in nomenclature. 
19. Perdicium semiflosculare ? Walt. p. 204 (not of L.) = CHAP- 
TALIA TOMENTOSA Vent. Jard. Cels. 61. t. 61 (1800). Walter's specific 
name, although printed in italics as was his usual custom with new 
species, is clearly only intended as a doubtful identification of his 
plant with Perdicium semiflosculare L. (Amoen. Acad. vi. 103 ( 1763)) 
from the Cape of Good Hope, the diagnosis of which in the second 
edition of the Species Plantarum (ii. 1248 (1763)) is quoted nearly 
