538 ROBINSON. 
largish heads with narrow unequal acute involucral scales passing 
inward into narrow somewhat readily deciduous paleae. The achenes 
are 4—5-angled as described by DeCandolle and the species is there- 
fore referable to Eupatorium rather than to Brickellia. With Car- 
phephorus, notwithstanding the presence of a few paleae on the outer 
part of the disk, the species appears to have no close affinity. The 
older specific name (triangularis) having been already several times 
employed for other species of Eupatorium, cannot be here revived. 
The only difference noted between the type of E. vitifolium and that 
of Bulbostylis triangularis is that in the single leaf of the latter, still 
preserved in the DeCandollean herbarium, the base is essentially 
truncate, while in the Liebmann plant, upon which Klatt’s species 
was founded, the leaf-base, though in the main outline truncate, 1s 
slightly cordate at the insertion of the petiole. In consideration of 
the close correspondence in all other features observed, this one slight 
difference is believed to be merely individual. At all events, until 
the plants can be examined in more complete specimens even a variet 
separation seems unwise. 
Brickellia cymulifera, spec. nov., subherbacea 3-4 dm. alta: 
caulibus gracilibus teretibus foliosis plus minusve decumbentibus 
crispe puberulis, internodiis 3-8 cm. longis; foliis oppositis graciliter 
petiolatis hastato-deltoideis caudato-acuminatis grosse dentatis basi 
cordatis utrinque viridibus sparse crispeque puberulis, laminis 3-54 
em. longis 2.5-3.8 em. latis, petiolo 1-4 em. longo; cymis oppositis 
laxe patentibus 3-5-capitulatis in axillis a parte media caulis (vel 
etiam a parte inferiori) usque ad apicem orientibus, pedunculis sub- 
filiformibus crispe puberulis 2-3.5 cm. longis in media parte bracteas 
binas foliaceas ovatas acuminatas integras gerentibus et ad apicem 
bracteolis binis parvis linearibus munitis; pedicellis filiformibus crispe 
puberulis saepe bracteolatis 4-15 mm. longis; capitulis (valde imma- 
turis) ca. 12-floris 6 mm. altis et diametro; involucri turbinato- 
campanulati squamis ca. 17 convexis viridibus vel atro-purpurels 
tenuiter striatis ciliolatis apice rotundatis, extimis dorso puberulis 
orbiculatis, intermediis ovato vel obovato-oblongis dorso subglabris, 
intimis oblanceolato-oblongis; corollis (immaturis) cylindricis sparse 
granulatis 5-dentatis; achaeniis (immaturis) obconicis tomentells, 
pappi setis 40-50 valde inaequalibus barbellatis albis.— Mexico: 
Minas de San Rafael, San Luis Potosi, November, 1910, Dr. Cos 
Purpus, no. 4802 (Tyrer, in Gray Herb., the same number also ex- 
amined in herb. Mo. Bot. Gard.). 
ConyzA SOPHIAEFOLIA HBK. Nov. Gen. et Spec. iv. 72, t- 326 
