ROBINSON. — DIAGNOSES OF TROPICAL AMERICAN PHANEROGAMS. 619 
graciliter tubulosis supra mediam partem paulo in fauces ampliatis 
granulosis 4 mm. longis limbum versus purpureo-violaceis, dentibus 
limbi brevissimis obtusis ; pappi setis albis corolla distincte brevioribus : 
achaeniis 5-gonis glabris 1.1 mm. longis basim versus paulo decrescen- 
tibus. — Alturas de Oaxaca, Mexico, 1800 m. alt., 20 February, 1907, 
Prof. C, Conzatti, no. 1738 (type, in hb. U. S. Nat. Mus., fragments in 
hb. Gray). A species somewhat approaching E. oresbium Robinson, in 
many of its more technical characters, but readily distinguished by its 
hastate-angled leaves, more globular inflorescence, purple pubescence, 
ete. 
Hupatorium ramonense, n. sp., herbaceum vel basi paulo lignes- 
cens a basi valde decumbens multirameum, ramis oppositis teretibus 
flexuosis foliosis viridibus pubescentibus ascendentibus 1.5-2 dm. vel 
ultra altis ; foliis oppositis petiolatis ovato-lanceolatis argute serratis 
vel biserratis acuminatis basi obtusis vel saepe plus minusve cuneatis 
trinerviis 3-4.5 cm. longis 1.6-1.8 em. latis supra atroviridibus minute 
pubescentibus subtus laete viridibus in nerviis breviter sparseque pilo- 
‘sis, petiolis 0.8-3 cm. longis hispidulis ; capitulis 75-floris longipedi- 
cellatis 1 cm. diametro in cymis multicapitulatis quasi fastigiatis ; 
pedicellis filiformibus 2-3.5 cm. longis erectis breviter pubescentibus ; 
bracteis lineari-lanceolatis acutis 3-5 mm. longis ; involucri campanu- 
lati squamis subaequalibus (exterioribus 2-3 brevioribus) lanceolati- 
linearibus attenuatis viridibus 2-3-nerviis breviter hispidulis 4-5 mm. 
longis ; corollis laete albis 3.8 mm. longis glabris vel sparse pilosis, 
tubo proprio gracili 1.7 mm. longo, faucibus subcylindrici-campanulatis 
distincte ampliatis, dentibus limbi deltoideis brevissimis ; achaeniis 
nigris 2 mm. longis 5-angulatis in costis sursum hispidulis apicem 
basimque versus paulo decrescentibus. — In shady moist places, form- 
ing compact masses, San Ramon, Durango, Mexico, 21 April-18 
May, 1906, Dr. Edward Palmer, no. 74 (type, in hb. Gray). This 
species is nearly related to E. petiolare Moc., but is readily distin- 
guished by its smaller ovate-lanceolate (never cordate) and much 
smoother leaves, as well as by the somewhat harsher non-glandular 
pubescence of the pedicels and involucral scales. 
Melampodium dicoelocarpum, n. sp., gracile 4 dm. altum ; caule 
dichotomo flexuoso striato-costato viridi sparse pubescenti vel puberulo 
nodos versus atropurpureo, internodiis ca. 1 dm. longis ; foliis oppositis 
graciliter petiolatis ovato-rhomboideis tenuibus acuminatis paucidenta- 
tis basi abrupte acutatis vel etiam acuminatis 3-nervatis supra laete 
viridibus sparse pilosis subtus paulo pallidioribus subglabris 3.5-6 cm. 
longis 1.2-3.3 em. latis; petiolo 5-10 mm. longo ; peduneulis filiformi- 
bus 3-5 em. longis in dichotomis caulis solitariis nutantibus vel etiam 
