46 BOTANY OF THE VOYAGE OF THE SULPHUR. 
arachnoideis subtus albo-lanatis, bracteis brevibus appressis, involucris secus ramos solitariis sessilibus 
lanatis apice truncatis multifloris—San Pedro. 
Affine E. dichotomo. Caulis pars inferior et folia infima mihi desunt. Rami in speciminibus suppe- 
tentibus bipedales, stricti, rigidi, basi fasciculato-ramosi, lana arachnoidea demum decidua albicantes. Folia ad 
ramificationes inferiores bipollicaria, basi in petiolum brevem angustata. Pedunculi seu rami floriferi pedales, 
semel vel bis furcati. Bractese opposite vel ternatim verticillate, 2 lin. longw, basi connate, lanceolato- 
subulate, rigide, appresse. Involucra in quoque ramulo 5-9, inter se longe distantia, 3 lin. longa, tubuloso- 
campanulata, extus tomentosa, apice truncata et integra vel obscure et obtusissime 6-dentata, Flores in involucro 
ultra 30. Pedicelli glabri, graciles, involucro subdimidio longiores. Bracteole setacew, parce plumose, 
pedicellis breviores. Perigonium glabrum, quam in Z. dichotomo minus, laciniis cuneato-oblongis. Filamenta 
basi vix breviter ciliata. Ovarium glaberrimum. Styli tres, divaricati. 
158. Extoconum gracile, sp. n., annuum, erectum, foliis petiolatis ovatis oblongisve cauleque 
albo-lanatis, pedunculis gracilibus virgatis dichotome ramosis superne glabris, involucris parvis secus 
ramos sessilibus solitariis subglabris breviter sexdentatis multifloris.—San Pedro. 
Herba gracilis, virgato-ramosissima, semipedalis ad pedalis, lana subarachnoidea in foliis et parte inferiore 
caulis densa, summitatibus omnino glabris. Folia sub ramis inferioribus fasciculata, semipollicaria, longiuscule 
petiolata, margine undulato-crispa; ad ramificationes superiores minora, ovata, sessilia. 
floriferi tenues, fere filiformes, rigiduli, glabri vel basi laxe et tenuiter lanati, Bractese parve, lanceolato- 
subulate, appressee. Involucra vix lineam longa, siccitate nigricantia, dentibus brevibus erectis obtusiusculis. 
Flores in involucro ultra 20. Pedicelli glabri, exserti. 
breviores. 
Pedunculi seu rami 
Bracteole tenuiter setacee, subplumose, pedicellis 
Perigonium ? lin. longum, glabrum, laciniis exterioribus late obovatis, interioribus oblongis. 
Filamenta et ovarium glabra. Styli tres, divaricati. 
Allied to E. vimineum, but the flowering branches are much more slender, 
and the involucres and flowers scarcely more than kalf the size. 
159. Ertoconum intricatum, sp. n., (Plate XXII.) annuum, foliis subradicalibus rosulatis longe 
petiolatis suborbiculatis viscoso-pubescentibus, pedunculo scapiformi divaricato-ramosissimo gla- 
berrimo, ramulis dense fasciculatis, involucris minimis sessilibus  solitariis multifloris, bracteolis 
obovato-vel cuneato-oblongis.—San Bartolomé. 
: Folia omnia ad basin caulis conferta, rosulata, pube viscosa non albicante vestita, semipollicem longa et 
lata, crassiuscula, obtusissima, margine undulato-crispa et subcrenata, petiolo usque ad pollicem longo hirto basi 
dilatato. Ramus florifer seu pedunculus scapiformis semipedalis usque ad bipedalis, undique glaberrimus, 
nitidus, siccitate nigricans, basi breviter erectus, dein divaricato-ramosissimus ; rami ad quemque nodum 
numerosissimi, dense verticillato-fasciculati, alii breves subsimplices, 
: : alii plus minus elongati, pariter et repetite 
fasciculato-ramosi. Ramuli ultimi tenues, rigiduli, ad nodos subarticulati. Bracteole minute, patentes. 
Involucra ad nodos et secus ramulos ultimos distantia, solitaria, sessilia, 2 lin, longa, campanulata, ineequaliter 
et obtuse dentata, ultra-12-flora. Pedicelli glabri, involucrum. breviter superantes. Bracteole obovate vel 
spathulato-oblonge, exteriores latiores, interiores angustiores, involucrum breviter superantes, apice dorso 
puberule. Perigonium vix } lin. longum, laciniis cuneato-oblongis obtusis glabris vix ineequalibus. Stamina 
perigonio subbreviora, glabra. Ovarium glabrum, Styli tres, 
A very remarkable species, differing from all others in the total want of 
: white wool even on the radical leaves, 
ev the curious fasciculate ramification, the 
excessive minuteness of the flowers, an 
d the form of the bracteole. 
