146 BOTANY OF THE VOYAGE OE H.M.S. HEKALD. 
parce pubescentes canescentcs. Folia opposita^ petiolata^ petiolo l-2-pol!ieari glabro basi latiore 
ptibcriilo seraiani2)]cxicauli supra caiialiculato^ ovataj basi cuncato-attcnuata integra, apice acuta 
vel subacuminata, margine leviter subrequaliter et callose crenato-serrataj membranacca, glandulis 
pcUucidis lutcis crcberrimis punctata^ pennincrvia^ nen^o medio et lateralibus validis^ omnibus 
Tcnisque subtus promiucntibus leticulata; inferiora utrinque viiidia glaberrima, %'el subtus secus 
ncrvos vk ac ne vix quidem puberula, 5~8-pollicaria, 2-3 pollices lata; superiora supra puberula, 
subtus cum petiolo pubesccntia cancsccntia, pollice ^dx majorat 6-8 lincas lata. Panicula thyr- 
soidca, pyramidata, terminaiis, in spccimine quod suppctit circitcr 5-pollicariSj obtusiuscula^ ramis 
ramulisquc capituligcris oppositis pubescentibuSj inferioribus ex axillis foliorum summorum ortis 
per poUicis spatium omiuuo nudis_, CEetcris a basi fere ramulosis et bractea basilari parva suffiiltis. 
Caj.-Hula densissime congesta numerosissima, breviter pedicellata, raro subscssilia, pedicellis in£e- 
qualibus pubesccntibusj — 10-12- plerumque 11-flora. Involucrum campanulatumj imbricatumj cir- 
citer 3 lincas altum, disco duplo fere brcvius; squama 4-5-serialcs, dcciduce, exteriores brevissimse 
ovatce ferrugincai, intimse oblongse 2-2|-lineares nervosa; stramineee summo apice ferruginese, omnes 
obtusiusculee coriacesej plus minusve cymba;forracs, pagina interiore glabcrrima3 nitcntcsj cxtcriore 
vel totai aracbnoidese vcl margine lana intncata alba ciliatse. Recejjtacuhtm augnstum, planum, nudum, 
tubcrcidatum. Flores omnes tubulosi, gracilcs, albidi, glabri, fauce vix ampliata, apice breviter et 
obtuse 5-dentati. Filamenta pauUo infra inscrtionem antheranim, more plurimarum Eupatoriacea- 
rumj dcorsum atque itcrum sursum plicata. Anthtrcs inclusse, basi ecaudatai, apice supra connecti- 
vum appendicula libera brevi continua ovata obtusa hyalina auctse. Stylus glaber, basi incrassatus. 
Stigmatis rami ralde clongati, exserti, divaricati, complanati, apice obtusi. Achcenia matura pcntagona 
nitida undique et ipsis angulis glaberrima, lineam et quadrantom longa, basi attenuata, nigra, callo 
basilari eostisque stramineisj pappi uniserialis setis paullisper in^equalibus coroUam subaiquanti- 
bus creberrimis albidis patulis Icvissime scrratis, ima basi interdum cobairentibus. 
This species approaches nearest to tbe genus Ctitoma, P. Browne, elnefly by its leaves, wlncb are 
dotted mtb pellucid glands, and by its deciduous involucral scales ; but on account of the eleven-flowered 
capitula it must he referred to Eu^aiorium, a genus diifering from Critonia by a few unimportant 
characters. On the other hand, our E. cntoniodes is closely allied to E. populifoHum, H.B. K. (Nov. 
Gen. et Sp. tom. 4. p. 111. no. 14; De Cand. Prodr. torn. 5. p. 155. no. 94), of vrhich I have examined 
an original specimen in Kunth's Herbarium ; but this plant has much broader leaves, 5-0 inches at the 
rounded base, which is cuneiform and softly attenuated in Dr. Scemanu's plant ; otherwise they are of the 
same texture, nervation, and sen-ature on the margm, and also dotted with yellow pellucid glands, a cha- 
racter which has not been mentioned by Kunth in his accurate description, 1. c. Moreover U. popiilifoUum, 
H. B. K., differs by its really sessile and densely clustered flower-heads, by the almost glabrous involucral 
scales, and by the achseuia, which are covered towards the apes with scattered hairs. 
5G0. ExjPATORiUM (Subimbricata) Schiedeanum, Schrader, Ind. Sem. hort. Gotting. 1832. p. 3. 
De Cand. Prodr. tom. 5. p. 159. no. 118. 
Vai'. 5. tomentosum, Stectz ; foliis deltoideis basi intcgcrrima cuncatis ctetcrum crcnatis supra 
scabris subtus cum ramulis pctiolisque dense rufo-tomentosis, capitulis breviter pedicellatis 25-30- 
floris, involucri squamis dorso pubescentibus. Volcano of Chiriqui, Veraguas. 
Var. e. capiiatum, Stcetz; foliis deltoideis basi integcrrinia cuneatis caiterum crcnato-serratis 
supra parce subtus cum ramulis pctiolisque dense cano-tomentosis, capitulis plerisquc subsessilibus 
dense capitate- congestis 20-25-floris, involucri squamis dorso pubescentibus. Volcano of Chiriqui, 
Veraguas. 
