26 BOTANY OF THE VOYAGE OF THE SULPHUR. 
Folia alterna, petiolata, 2 poll. longa et lata, fere ad costam mediam bis dissecta, lobulis lineari-lanceolatis acutis, 
dentibus obtusiusculis brevibus crispis, rhachi alata et lobulis dentibusve crispis inter segmenta additis, 
pagina utraque virescente pube utprimum densa viscosa vestita, in foliis adultis pilis albidis erectis 
numerosis intermixtis. Racemi breves, conferti, alii masculi videntur alii foeminei, sed in specimine incom- 
pleti sunt; capitula tamen utriusque sexus numerosa sunt, sessilia, et valde approximata. Involucra mascula 
patentia, 2 lin. lata, valde obliqua, fere ad medium in lacinias 6 ovatas acutas divisa, viscoso-puberula. 
Palese receptaculi lineares, apice paullo latiores, flores superantes, viscoso-hirte. Corolle subinfundi- 
buliformes, tubi parte attenuata brevissima, fauce longa campanulata brevissime 5-dentata. Stamina 
inclusa ; filamenta brevissima ; anthere oblong, appendice ovata acuta vix setifera anthere loculis zequilonga. 
Styli rudimentum breve, apice penicillatum, Involucra foeminea ovata, arcte clausa, extus viscoso-pubescentia, 
2-4-flora, Ovaria inclusa, ovoidea, glabra. Styli rami exserti, elongati, obtusi, glabri, stigmatis seriebus pro- 
minulis fere ad apicem extensis, Capitula matura vix 2 lin. longa, aculeis paucis brevissimis seepius tuber- 
culiformibus, intu$ 3-4-locularia. 
Allied probably to F’. pumila, Nutt. which is very imperfectly described, but 
is said to be silky-canescent, which the present species certainly is not. The 
F. pumila is, moreover, placed by Torrey and Gray in a section with uniflorous 
female heads, but it does not appear whether that character had been in this 
instance verified. 
87. Franserta chenopodiifolia, sp. n., suffruticosa? humilis, foliis petiolatis ovatis dentatis 
subincisis utrinque albo-tomentosis, spica interrupta, capitulis superioribus masculis involucro 
8-10-dentato, inferioribus foemineis paucis subglobosis tri-floris tomentosis, aculeis elongatis 
numerosis.—Bay of Magdalena. 
Specimen semipedale, ramosum. Caulis basi lignosus videtur, glaber, purpureus; apices ramorum cano- 
tomentose. Folia alterna 1-1}-pollicaria, acuta vel vix obtusiuscula, dentibus inequalibus seepe duplicatis 
subcrispis, basi latiora truncata vel in petiolum breviter angustata, crassiuscula, penninervia et basi sub- 
trinervia, utrinque presertim in pagina inferiore tomento brevi laxiusculo albida ; petioli graciles fere pollicares. 
Spica tripollicaris. Capitula mascula in parte superiore circa 10, sessilia, late hemispheerica, involucro tomen- 
tello membranaceo yenoso breviter et ineequaliter 8-10-dentato. Flores fere 30. Receptaculi pales lineari- 
spathulatee, floribus paullo breviores, apice ciliato-hirte:, Corolle anguste turbinato-tubulose, involucrum 
Superantes, apice breviter 5-dentate, extus vix puberule. Anthere corollam eequantes, singule filamento suo 
paullo longiores, appendice ovata acuta apice breviter pilifera inflexa. Styli rudimentum corollam equans, apice 
-penicillatum. Capitula fceminea ad basin spice pauca. Stylus exsertus, ramis longissimis, fere F’. hispidi. 
Fructus depresso-globosus, 2 lin. diametro, intus (in speciminibus duo scalpello subjectis) trilocularis, loculis in 
uno specimine omnibus fertilibus, in altero duobus abortivis. Aculei lineam longi, basi subdilatati, apice 
sepe hamati, glabriusculi, Tomentum seu lana inter aculeis breve, laxum, album. 
: 88. ENcELIA conspersa, sp. n., diffusa, ramis adscendentibus junioribus albo-tomentosis, foliis 
ternis ovatis oblongisve adultis viridibus pube rara conspersis, pedunculis longis 2-3-cephalis, 
| > a a re ciliolatis, achzeniis planis faciebus fere glabris marginibus longe 
: Ceules basi lignosi, ee Rami floriferi adscendentes vel erecti, }-1-pedales, striati, pube farinosa 
— —— Gaal. hice oe —— petiolata, pollicaria vel paullo longiora, nunc lato-ovata margine 
— = oblonga Rit ase omnia obtusa, basi cuneata, crassiuscula, trinervia, pilis brevissimis albis 
Bas it ~gare ceeterum viridia vel primo juventute alba. Pedunculi semipedales, in 
monocephalos divisi, ramis bractea oblonga parva subtensis, Capitula hemispherica, magnitudine 
