122 DESCRIPTION OF ASTERS; DIVARICATI 
Resembles A. olivaceus in its tendency to purpled scarious 
inner bracts of long narrow form. Differs in having long pedicels, 
^ obtuse roundish-topped outer bracts, triangular-lanceolate leaf- 
form, and single-dome inflorescence-form. 
This Prune-stem form may include the native original of A. 
corymbosus & Aiton, Hort. Kew., ed. 2, 5: 57. 1813, there 
characterized simply as “caule purpureo.  Purple-stalked cor- 
ymbed Starwort," in distinction from his var. J, “caule viridi," 
which probably represents typical A. divaricatus. (See supra, 
65. 
"rhe types of both a and #3 are preserved in Herb. Brit. Mus. 
(Nat. Hist.), and Mr. Edmund G. Baker, in litt. 1898, remarks of 
a that “ Clayton's 767 [A. Claytoni ] resembles « in that it has a 
purple stem, but the heads of flowers are slighty larger and the 
character of the inflorescence is different. In 4. corymbosus Aiton 
4, the capitula are nearly all turned upward, while in the Clayton 
plant they, or some of them, turn downward." 
The above characters, purple stem, smaller heads and nearly 
all turned upward, are strongly characteristic of the Prune-stem 
plants. 
Examples (chiefly in woodland borders and paths) : 
Ct., Eas? Windsor Hill, 1878, Rosa B. Watson in hb. Bu. 
N. Y. Cy., Washington Heights, Oc. 10,'98; June 26, '97, one foot high, 
in leaf. 
N. Y., Catskills, Kaaterskill Junction, in Augue Se. 7, 99. 
W. N. Y., Silver Cr., frequent, ' 97-1 
N. J., Palisades, tides abundant, Se. I ri * 97. 
° FLABELLATE form. Main stem weak and deliquescent, rap- 
idly diminished from node to node after giving off about 4 branches. 
Branches erect, ascending, longer than their parent-stem, slender 
and of quite uniform length. The whole inflorescence presses into 
a convex top with deep acute base. Stems smooth, sometimes 
shining, purplish-red. Leaves broad-based, somewhat ovate, with 
little cordation, rather small, their teeth very uniform and rather 
slight. Slender petioles continue into the inflorescence. Upper 
axiles and rameals oblong-lanceolate, sessile: ramulars oblong- 
elliptic or oblong-acute, with long low minute teeth ; some axiles 
develop short broad wings.  Leaf-texture firm, nearly smooth to 
touch. 
N. Y. vic., Bryn Mawr Park, at Split Rocks, Se. 17, 98, unstimulated plants 
in hard thin soil, 1 to 174 ft. high, with subremote heads. Stimulated plants, Oc. 21, 
'98, in loosened gravel by a newbuilt house, close to the preceding en showed 
interesting effects in their greater inflorescence and more &. These 
plants were not traceable distinctly the next season or rward ju» were probably 
trampled out. Virescence was strong by Oc. 21; jes rays ais greenish-yellow and 
