4 ROBINSON 
During a re-examination of this group it has been noticed that two 
Nicaraguan specimens, namely an unnumbered plant collected by 
Charles Wright and C. F. Baker’s no. 2220 (both in the Gray Her- 
barium) were by the writer, Proc. Am. Acad. xlix 478 (1913), through 
an error recorded as A. scabriusculum. They should unquestionably 
be referred to A, petiolatum (Hook. & Arn.) Hemsl. 
Alomia (§ Eualomia) chiriquensis, spec. nov., verisimiliter 
herbacea perennis (basi ignota); caule tereti purpurascente juven- 
tate obscure puberulo maturitate glabrato ca. 3 mm. diametro med- 
ulloso; internodiis 4-8 cm. longis; foliis ternatis lanceolatis utroque 
attenuatis crenato-serratis sed basin versus tertiam partem longi- 
tudinis integerrimis 3(—5)-nerviis coriaceis glaberrimis supra pallide 
viridibus subtus albidi-viridibus utrinque puncticulatis 8-10 cm. 
longis 1.5-1.8 cm. latis; petiolo brevissimo et puberulo 1-2 mm. 
solum longo; axillis saepe proliferis; corymbis convexis 2.54 em. 
diametro pedunculatis 6-12-capitulatis; bracteis linearibus; pedi- 
cellis ca. 7 mm. longis fulvido-puberulis; capitulis ca. 37-floris 7 mm. 
altis et crassis; involucri squamis extimis paucis brevioribus angustis 
linearibus, intermediis lanceolatis acutis obscure puberulis subae- 
qualibus, intimis anguste linearibus; receptaculo conico nudo glabro; 
corollis verisimiliter albidis 3 mm. longis tubo proprio 1.5 mm. — 
longis glandulari-granulato, faucibus anguste infundibuliformibus 
glabriusculis; achaeniis 0.8 mm. longis nigris annulo corollam gerente 
coronatis; pappo proprio nullo.—Panama: between Cerro Vaca and 
Hato del Loro, eastern Chiriqui, alt. 850-1100 m., Prof. H. Pittier,. 
no. 5389 (U. S., phot. Gr.). 
The ternate arrangement of the leaves in this plant may perhaps 
be only casual, for ternate-leaved individuals occasionally occur In 
species which are habitually opposite-leaved. Quite apart, however, 
from its ternate leaves this plant is clearly distinct from any Pre 
viously described species with epaleaceous receptacle in § Eualomia. 
Eupatorium (§ Subimbricata) aequinoctiale, spec. nov, her- 
baceum verisimiliter perenne 4-6 dm. vel ultra altitudine; caule 
(basi aliquando decumbente et radicante) tereti striato fuseo-viridi 
crispe puberulo oppositi-rameo; ramis curvato-adscendentibus; foliis 
oppositis ovatis petiolatis acutis crenato-serratis (dentibus 1-1.3 
mm. altis 3-4 mm. latis utroque 6-12) basi rotundatis vel subacutis 
usque ad 5 em. longis et 3.2 cm. latis firmiuscule membranacels 
utrinque viridibus a basi 3-nerviis praecipue in nervis venlsque 
puberulis et subtus glandulari-atomiferis; petiolo 4-16 mm. longo 
crispe puberulo; cymis in caule ramisque terminalibus trichotom's, 

