1918] Blake,— Notes on the Clayton Herbarium 71 
nov.— Dasystoma Drummondii var. serrata Benth. in DC. Prod. x. 
521 (1846). G. serrata Torr. ex Benth. |. c. as syn. G. grandifolia 
var. serrata (Torr.) Rob. Ruopora x. 35 (1908). 
AGALInis virginica (L.) comb. nov.— Rhinanthus virginicus L. Sp. 
ii. 603 (1753). Gerardia flava L. 610. 
AGALinis glauca (Eddy) comb. nov.— Gerardia glauca Eddy, Med. 
Repos. N. Y. hex. 2. v. 126 (1808). Gerardia virginica BSP. Prel. 
Cat. 40 (1889), not Rhinanthus virginicus L.; Robinson & Fernald 
in Gray, Man. ed. 7. 730 (1908). 
AGALInis laevigata (Raf.) comb. nov.— Gerardia laevigata Raf. Ann. 
Nat. 13 (1820). 
AGcaLinis auriculata (Michx.) comb. nov.— Gerardia auriculata 
Michx. FI. ii. 20 (1803). 
Acauinis densiflora (Benth.) comb. nov.—Gerardia densiflora 
Benth. Comp. Bot. Mag. i. 206 (1836). 
AGALINIS TENUIFOLIA (Vahl) Raf. var. macrophylla (Benth.) comb. 
nov.— Gerardia tenuifolia var. macrophylla Benth. Comp. Bot. Mag. 
i. 209 (1836). 
12. Gnaphalium obtusifolium L. Sp. ii. 851 (1753).! In the Synop- 
tical Flora (i. pt. 2. 234 (1884)) this name was synonymized by Dr. 
Gray with G. polycephalum Michx., but rejected because “a false name 
taken from the char. and figure of the doubtful plant of Dill. Elth.”’, 
and the sixth and seventh editions of Gray’s Manual have followed 
this usage. However, this view is not sanctioned by modern practices 
of nomenclature. Clayton’s no. 203, at the British Museum, basis of 
the Gronovian reference, is G. polycephalum, and the figure and descrip- 
tion of Morison refer likewise to this species. The figure of Dillenius, 
as well as his description, seems to the writer to agree well with the 
plant later described as G. Helleri Britton in breadth of leaf, pubescence, 
and other features. This Dillenian reference, based on a plant 
probably altered by cultivation, has been a source of doubt from early 
1 Gnaphalium obtusifolium. 
“g. GNAPHALIUM foliis lanceolatis, caule tomentoso, ramoso, floribus terminalibus 
glomeratis conicis. 
“ Gnaphalium foliis lanceolatis, caule tomentoso, corymbis supra decompositis, floribus 
sessilibus confertis. Gron. virg. 95. 
“ Elichrysum obtusifolium, capitulis argenteis conglobatis. Dill. elt. 130. t. 108- f. 131. 
“Helichrysum Chrysocoma Gnaphalioides virginiana annua, foliis obtusioribus, capitulis 
argenteis conglobatis. Moris. hist. 3. p. 88. s. 7. t. 10. f. 19. 
“ Habitat in Virginia, Pensylvania. © 
“Caulis tomentosus, pilosus, ramosus, ereclus. Folia lanceolata, recurvata, nudiuscula. 
Flores terminales, conglobati, inaequales, subsessiles. Calyces conici, albi, aculi. Corollae 
flavae.” 
