TLOIU OF THE ISTHSnJS OF PANAMA. 157 
scabrECj 1 1-2 lineas circitcr longae, Fhres omnes licrmaphroditi, tubiilosi, ncrvis 5 inter dcntium 
sinus exciuTCiitibus pcrcursi, pallick lutei, pubcrulii tubulo lircn^ qnadrantcra totius coroUie partem 
circiter meticnte, sensim in faucem amiiliatam, apicc 5-deutataui trauseunte, dcntilnis cxtus dense 
papillosiSj intus glahris. Filamenta ima fauce inserta, planiuscula, all)a, panllulum infra articula- 
tioncm cum antlicris torta, supra incrassata, ct parte hasilari dorsali antherarum adnata. Antherte 
nigrffi, suh antliesi seepc longe exsertse, basi ccaudattc, apice supra conncct)\ urn in appcndiccm libcram 
subcordato-ovatam, basi utrinquc rotundata constrictam, apicc acutissimam, cncrvcm, Ujalinam pro- 
ducts. Pollinls granuJa sphicrica, uucUtiuc ccliinulata. Ovaria obovata, eompressa, basi paullispcr 
attenuata, obtusa, glabra, sctis rigidis 10-12 valdu inLequulibus untrorsum serrulatis irrogidaritcr dis- 
positis caducissimis aucta. Stylus glabcr; stigmatis rami exscrti, utrinque recurvati, bispidi, acuti. 
AclKBuia matura subtctragona, crassa, comprcssiuscula, basi attenuata, obtusa, apice margine angu- 
stissimo calloso cincta, truncata, glabra, nigrcsccutla, disco cplgyno pubcrulo, et seta una altcrave 
residua aucta, ca:iterum calva. 
This species is most remarkable, mtb a very different habit from aU other congeners hitherto T^nown ; 
but its flower-heads resemble so completely the type of the genus, that I was indeed sm-prisod ^vheu I found 
that it really belongs to Mclananfkem, Hieh. 
590. Gymnopsis vulcanica, Stcctz ; canle trichotomo, ramis divcrgcntibus tcrctibus striatis a^po- 
rulis, foliis petiolatis oppositis ovatis acuminatis argute scrratis tri-quintuplincr\iis supra strigosis 
subtus xmbcscentibus, capitulis in apice ramorum subternis, involucri biserialis squamis ovato-lanceo- 
latis acuminatis strigosis, palcis rcceptaculi complicatis rigidis acuminatis, achreniis raxiu abortivis, 
disci compresso-tetragonis, margine angustissimo iutegcrrimo coronatis cicterum calvis. Volcano of 
Chiriqui, Ycragnas. 
Specimen unicum, quod suppctit, est summitas sesqnipedalis caulis florifcri. Rami oppositi, 
angulo recto fere diver^entes, tcretcs, striati, vix asperuli, versus aplccm hirti, corticc rubcsccnte tecti, 
in£cquales, (ramus dexter scilicet paris inferioris, sinister superioris 1-2-pollicaris, rami iis oppositi 
6-pollicares et ultra; quod, si lege natui-ali ncccssario semper accidit, neque casu quodam solummodo 
in nostro speciminc semel factum est, charactcrem significantcm spcciei addit) . FoUa pctiolata, 
petiolo pubcscente 4-8-lincari, opposita, basi attenuato-obtusa, apice acuminata, argute serrata, tri- 
quintuplinervia, nereis lateralibus inferioribus basi proximis, supcriora interdum revera fere trincrvia, 
supra strigoso-aspenima, subtus pallidiora, pubcscente -scabriuscula, infcriora 2-2^-pollicaria, medio 
poUicem lata, supcriora l-H-pollicaria, scmipollicem lata. Capitula ligulata, multiflora, in apicc ra- 
morum subtcrna, vel laxe corymbosa, pcduncnlata. Pedimculi pills adpressis dense hirti, canescentes, 
monoccpliali, plerumque pollicam. Involucri campanulati dLsco brcvioris, squamte 18-20, l)iscrialcs 
arete imbricatie, rigids, inicqualcs (exteriores plerumque breviores), ovato-lanccolatie, acuminatie, 
extus strigis albis adpressis dense liirtai, canescentes, intus, prseter apiccm ciliatum, glaberrima;, ner- 
vosEe 2-3 lineas longre, 4-1 lineam latie. Rcceptaculi planiusculi palcie complicate, carinata;, lan- 
ceolate acuminato-pungcntcs, dorso plus minusve pubesccntes, nervosa, intus glabcrrime, margine 
(exeepto summo apice) latiuscule scariose, 2-2^ liucas longce, flores amplectentes, usque triplo brevi- 
ores Flores margmales ligulati, uniseriales, circiter 10, inter palcas exteriores ct involucri squamas 
interiores siti palca non involuti. Ligul^s neutre, sine uUo genitalium vestigio. utnnquc parcc hir- 
sute oblonn-e apice obtuse et brevissime bidcutate, 7-9-ner™, pulcbre anrce, cum tubulo dcnsius 
hirsnto cairesccnto, scmilincari, 5-5^ lineas longa., ovario stcrili, liucam et quadrantem longo, parce 
pubcruio calvo insidentes. Flores disci numerosi, hermaphroditi, tubulosi, cum ovano 3 luieas 
