14S BOTANY or THE VOYAGE OF H.M.S. HERALD. 
Tliis species, with which an original specimen gathered by Asehenbom in Mexico, defined by Schaucr, 
fully agrees, is closely related to Eu^atorium Pichincliense , II.B. K. (Not. Gen. et Sp. torn. 4. p. 122. 
no. 37), but well distinguished hj a somewhat different habit, by a denser pubescence, cliiefly on the under 
surface of the leaves, by smaller and more rounded crcnatures, which are larger and mucronate, by a 
callous tip in the Hup. Pichincliense, and by the scales of the involucre, which are more obtuse and blunt at 
the summit, and not acute as in Humboldt's plant. The specimens gathered on the Chiriqui Volcano hare 
somewhat smaller leaves, and a more downy and brownish pubescence ; otherwise I do not find any differ- 
ence. The bristles of the pappus seem to be very deciduous in this species. 
565. EuPATORiUM (Eximbricata) stenolcjns, Stectzj suffruticosum, totnm pilis glandulosis 
hirtum, aspcndum, ramis teretibus, foliis oppositis decussatis penninerviis lanceolatis subintegcrrimis 
sessilibus apice acutis basi valde attenuatis, panicul^ coarctatai ramis decussatis basi nudis, capitulis 
breviter pedicellatis vel subsessilibus dense congcstis 25-30-floris, involucri campanulati squamia 
patulis angustis 2-3-scriallbus acutis interioribus acuminatis, achjeniis nigris parce puberulis, pappi 
albissimi setis flore bre^ioribus ssepe deciduis. Santiago de Vcraguas. 
In spccimine unico, quod suppetitj video caulem vel ramum pedalem, tcretem, pube breWssima 
birtum, crassitic pemune corvinse, in parte infcriore propter folia dclapsa cicatricosum, internodiis 
brevissirais 3-4 lineas longis, in parte superiore pilis crassis glanduligeris rufis hirtum. Folia pauca, 
qua; supersunt, opposita, dccussata, approximata, crassluscula, penuinervia, lauceolata, subinteger- 
rima vel Icvissime repando-undulata, versus basin valde attenuata, pctioliformia sed revera sessilia, 
sive si mavis in petiolum anguste alatum sensim abeuntia, utiinque pilis simplicibus ct (prtesertim 
margine) glanduligeris dense birta, aspcrula^ tripollicaria, G-8 lineas lata, superiora sensim decre- 
scentia, acuminata. Panicula; coarctatse ramuli oppositi, decussati, axillares, basi longiusculc nudi, 
supra medium corymbo eomposito confertissimo terminati. Capitula numerosa, breviter pedicellata 
vel subsessilia, basi bracteata, 25-30-tlora, 3 lineas alta. Involucri campanulati diseum sub^quantis 
squamae 2-3-seriales, angustse, patulse, dorso glandulosse, extirase brcvissimffi, braetcicformes, acut^e, 
uninerves, media, intimis duplo fere brcnores, et intimffi anguste lincares, basi ncrvis 2 valiclis gla- 
briusculis stramincis exaratse^ acuminata;, acumine utrlnquc rufescente ciliato, c^terum pagina intcriore 
glabenima;, straminese, nitentes. Receptaculum planum, nudum, tuberculatum. Flores omncs tubu- 
losi, ut in sicco videtur lutei, tubo gracili, faucc sensim ampliata sublongiorc, 2 lineas longi, apice 5- 
dcntati, dentibus obtusiuscuUs, satui-atius coloratis, extus glanduloso-puberulis. Filamenta infra inser- 
tionem antherarum stricta ! Arithera inclusae, basi rotundatee, apice supra connectivum in appen- 
diculam liberam brevcm continuam ovatam obtusiusculam enervcm liyaUnam productie. Stylus 
glabcr basi incrassatus. Stigmatis rami elongati, exserti, divaricati, versus apiccm undique papillis 
pro genere longiuscuHs manifcste bispidi ! Ach<snia matura pentagona, nigra, pareissime puberula, 
callo basilar! stramineo munita, semilincam louga. Pappi albissimi, set^ in^equales, baud nume- 
rosse^ tenuissimse, leviter serrata;, corolla breviores, fragiles, itaque stepe deciduEe. 
566. EuPATORiUM (Eximbricata) elatum, Steetz; herbaeeum, totura parce puberulum, caulc 
elato tereti striate, ramis axillaribus divergentibus, foliis herbaecis penninerviis lanceolatis integer- 
rimis acuminatis, inferioribus oppositis sessilibus maximis, superioribus multo minoribus stepe altcrnis 
et in petiolum brcvem angustatis, panicula composita bracteata laxa, ramulis basi nudis apiee capitida 
2-4 inaqualiter pedicellata 20-25-flora gerentibus, involucri campanulati squamis 2-3-scrialibus 
obtusis, achaeniis glabris ad angulos' parce birsutis. Forests of Panama. 
Caulis elatus, bcrbaceus, teres, parce puberulus, subtiliter multistriatus, infcme crassitic pennje 
