2. ANTENNARIA (MNIODES) ARETIOIDES (Baccharis aretiodes, Schultz Bip., Merope aretioides, Wedd. Chlor. And. t. 25), from the Andes a little farther south, has more obovate, less truncate, and much less villous leaves, papillose sterile ovaria (fertile plant not known), and the bristles of the male pappus very gradually and moderately thickened upwards. These distinctions are derived from Weddell's figure and description, and from a small specimen of no. 1823 of Lechler's collection, kindly communicated by Dr. Schultz. But what he has communicated under the same name, from Hænke's reliquiæ, is plainly the A. andina.

WERNERIA, H. B. K. This interesting and now rather polymorphous andine genus, like its analogue Senecio, is either radiate or discoid, the rays either yellow, white, or rose-color; the branches of the style are either truncate, or, in a few species, tipped with a setiform appendage. In one remarkable species the receptacle is alveolate; in one or two the leaves on the branches, or some of them, are opposite; in several there are five abnormal nerves to the disk-corollas, occupying the axis of the lobes, as in De Candolle's Mesogramma; but this is an inconstant character. The collection of the Exploring Expedition comprises the following species, viz. :

WERNERIA NUBIGENA, H. B. K., including, with Weddell, W. disticha and graminifolia, but not W. rigida (misprinted frigida by De Candolle), which is apparently the larger form of W. pumila.

WERNERIA ORBIGNYANA, Wedd., var. BREVIRADIATA: involucri laciniis 10-14 ligulas breves adæquantibus; foliis sæpius integerrimis.

- High Andes of Peru, near Casa Cancha. This, which I had formerly named W. nuda, is perhaps W. nubigena var. caulescens, leioscapa, Wedd. 1. c.

WERNERIA VILLOSA (sp. nov.): rhizomate repente; caule florifero gracili simplici usque ad capitulum parce folioso villoso-lanato; foliis angustissime linearibus primum villosis mox glabratis, summis brevibus filiformibus capitulum bracteantibus seu involucrantibus, radicalibus obtusis deorsum longe attenuatis, basi dilatata scariosa intus fulvo-crinita; involucro 12-15-fido, lobis lineari-lanceolatis margine scariosis; ligulis exsertis; styli ramis apice truncato penicillato-hispidis; achenio glabro. High Andes of Peru near Alpamarca.To be compared with W. staticafolia, Wedd., especially the var. celmisioides; but that is said to have the branches of the style subulate, &c.

WERNERIA PYGMÆA, Gillies, including W. Rhizoma, Remy, W. mi

nima, Walp., W. graminifolia, Benth., W. brachypappa, cherlerioides, and apiculata, Schultz Bip. Andes of Chili and of Peru.

WERNERIA CESPITOSA, Wedd., which was long ago collected by Dombey, on the high Andes of Peru.

WERNERIA CARNULOSA (sp. nov.): acaulis, cæspitosa, parva (pollicaris), undique glabra; rhizomate crasso fere lignoso ramoso; foliis confertissimis linearibus vel spathulatis brevibus integerrimis obtusissimis carnosis capitulum sessile vix æquantibus; involucro 12-lobo, lobis tubo parum brevioribus lineari-oblongis obtusis apice ciliolatis; ligulis nullis ; acheniis glabris ; antheris luteis. — High Andes of Peru.

WERNERIA STRIGOSISSMA (sp. nov.): cæspitosa, subpollicaris; rhizomate ramoso crasso repente; foliis rosulatis brevibus spathulatis integerrimis capitulum sessile fulcrantibus cum involucro 10-14-fido strigosissimis; vaginis crinitis; ligulis exsertis; styli ramis apice truncato hispidulo penicillatis et appendice setacea auctis; achenio pubescente; pappo rigidulo.- High Andes of Peru near Casa Cancha. Bristles of the leaves themselves denticulate, or the larger ones resolved above into a tuft of slender hairs.

WERNERIA CILIOLATA (sp. nov.): cæspitosa, ramosissima, depressa, glaberrima; ramis brevibus confertissime foliosis; foliis (sæpe oppositis) linearibus subcomplicatis vel canaliculatis acutiusculis subcarnosis sub lente spinuloso-ciliolatis; capitulis sessilibus; involucro cylindraceo pluricostato 8-fido, lobis triangulato-lanceolatis obtusis subscariosis, costa valida; ligulis paucis brevibus; styli ramis truncatis apiculo brevi vel obsoleto; acheniis glabris. High Andes of Peru, near Alpa

marca.

WERNERIA DIGITATA, Wedd. A scanty specimen was collected along with the preceding and the succeeding species, exhibiting some minor discrepancies from Weddell's description. The leaves bear some woolly hairs; their lobes are incrassated, although far less so than in the following, and are blunt, instead of acute; a few of them are truly opposite. Involucre costate or nerved; the divisions 13 to 20, scarcely if at all longer than the tube. The branches of the style, as well in the ray as in the disk, sometimes bear a conspicuous, slender, setiform appendage (either naked or sparingly setulose); sometimes this is obsolete, or not distinguishable from the coarse hairs of the truncate obtuse summit.

WERNERIA DACTYLOPHYLLA, Schultz Bip. This extraordinary species was first detected by Dombey. On account of the habit, the

appendage of the style, and the alveolate receptacle, I was disposed to regard this (as was Dr. Schultz) as the type of a new genus, sustaining to Gynoxys the relation which Werneria does to Senecio. But all these characters break down; that of the style is inconstant even in the same species; the closely allied preceding species has a naked receptacle ; and in this the alveoli vary, being sometimes very deep and here and there irregularly extended into scarious fimbrillæ, some of them even half the length of the flowers; while in Dombey's own specimens, in the Parisian herbarium, the receptacle is only moderately alveolate.

SENECIO LEUCOMALLUS (sp. nov.): fruticosus, ramosus, undique albo-lanosissimus; ramis 1-3-cephalis ad apicem usque foliosis; foliis spathulatis integerrimis obtusis planis (denudatis glabratis aveniis); capitulis breviter pedunculatis; involucro lanosissimo, bracteolis linearisubulatis squamas proprias subæquantibus; ligulis nullis ; acheniis glaberrimis. -Var. ß. INCISUS: caulibus laxis adscendentibus; foliis plerisque apice 3-5-lobatis vel inciso-dentatis. - Orange Harbor, Fuegia. Related to S. Patagonicus, Hook. & Arn., of which S. Andersonii, Hook. f. and S. Duyausii, Hombr. & Jacquinot are forms.

SENECIO WEBSTERI, Hook. f., var. SUBDISCOIDEUS: ramis adscendentibus; foliis flabellatis grosse crenato-dentatis, basi nunc truncata nunc late cuneata; ligulis paucis parvis tubo brevioribus.-Orange Harbor, Fuegia.

SENECIO DARWINII, Hook. & Arn., var. ERADIATUS: pumilus, condensatus; foliis parvis; ligulis nullis. S. Laseguei, Homb. & Jacquinot? With the preceding.

SENECIO EIGHTSII, Hook. & Arn., in its more luxuriant states shows indications of being only another variety of S. Darwinii.

SENECIO TRIFURCATUS, Less., is stoloniferous, a character not mentioned in any published description; but a young stolon is delineated on one specimen in Dr. Hooker's excellent figure.

SENECIO SUBCANDIDUS (sp. nov.): herbaceus vel basi frutescens, laxe arenoso-lanatus; caule mox glabrato erecto sesquipedali apice corymboso; foliis membranaceis, caulinis oblongis ovato-subcordatis vel subdeltoideis grosse duplicato-dentatis crenatisve supra glabratis subtus tomentoso-incanis, petiolo sæpius alato; capitulis in corymbo 3-9 longe pedicellatis; involucro circiter 20-phyllo glabrescente (squamis linearibus) basi bracteolis brevibus subulatis parce calyculato; ligulis elongatis; acheniis sericeo-puberulis. - Ludit foliis sinuatis et, var. MINOR: caule subaphyllo oligocephalo; foliis lyrato-pinnatifidis seu pinnatipar

titis, petiolo basi sæpius stipulato-appendiculatis. - Andes of Peru near Obrajillo. Also crest of Purruchucha, by Matthews, and in some part of Peru by Pavon.

SENECIO GRACILIPES (sp. nov.): herbaceus, pruinoso-pubens; caule erecto simplici pedali parce foliato oligocephalo; foliis membranaceis, inferioribus longissime graciliter petiolatis ovatis subrotundisve sinuato5-7-lobatis lobis denticulatis, superioribus parvis paucis pinnatifidis petiolo basi aurito-dilatatis; capitulis longiuscule pedunculatis discoideis; involucro parce bracteolis setaceis calyculato 20-phyllo, squamis lineari-lanceolatis dorso hirtellis; acheniis minutim hirtellis. Andes of Peru, near Obrajillo.

SENECIO RICHII (sp. nov.): herbaceus, glaber; caule erecto gracili apice corymboso polycephalo; foliis angustissime linearibus plerumque laciniatis vel pinnatipartitis; capitulis parvis discoideis pedicellatis; involucro parce minutimque bracteolato 12-13-phyllo, squamis lanceolatis obtusiusculis; acheniis hirtellis. Var. B.? foliis latioribus, lobis lanceolatis; ramis floridis patentibus. With the preceding. SENECIO PICKERINGII (sp. nov.): fruticosus, humilis, ramosissimus, glaber; ramulis brevibus rigidis, floriferis capitula 1-3 sub-pedicellata sæpius nutantia gerentibus; foliis crebris linearibus seu linearioblongis sessilibus subcarnosis grosse pinnatifido-dentatis rariusve integris; bracteolis calyculi ovatis seu obovatis squamis involucri 1012 late oblongis triente brevioribus; ligulis nullis; acheniis glabris ; pappi setis barbellulatis. — Var. B.? foliis minus carnosis magis incisis; capitulis minoribus; bracteolis squamisque involucri angustioribus. - High Andes of Peru, between Culluay and Casa Cancha, &c. SENECIO DANÄI (sp. nov.): suffruticulosus, cæspitoso-depressus, glabratus; foliis crebris carnosulis linearibus inciso-3-5-dentatis subpinnatifidis vel integerrimis primum cum caule apice subaphyllo monocephalo lanulosis; capitulo nutante discoideo; involucri squamis 1416 lato-linearibus obtusis cum bracteolis calyculi dimidio brevioris dorso nigro-pubescentibus; acheniis cinereo-puberulis. - Alpamarca, high Andes of Peru.

SENECIO DICLINUS, Wedd. This collection contains male as well as female specimens, as also does the Hookerian herbarium, in specimens collected by Mr. McLean. The female flowers have imperfect anthers; the male have a style like that of the female, only its branches are minutely papillose externally, as in Weddell's S. iodopappus. The style in the female flowers, instead of resembling that of

the hermaphrodite blossoms of Senecio generally, imitates that of the ray-flowers of the genus.

SENECIO EVACOIDES, Schultz Bip., is also in the present collection, but with a pappus the bristles of which are indistinctly, if at all, barbate at the apex.

SENECIO PELLITUS (sp. nov.): subdioicus? manus, herbaceus, surculosus, acaulescens, undique pilis longis sericeis dense crinitus; foliis rosulatis obovatis vel subrotundis integerrimis sub-3-5-nerviis in petiolum brevem attenuatis; scapo brevi vel subnullo monocephalo; involucro 20-phyllo ecalyculato; ligulis nullis; floribus creberrimis; styli ramis obtusis (nec truncatis) hirtulis; acheniis glabris; pappo rigidulo. - High Andes of Peru near Casa Cancha. The flowers in the specimens are structurally hermaphrodite; but the anthers bear very little pollen, and the style resembles that of the female flowers of S. diclinus, &c., to the same group with which this species evidently belongs. SENECIO WERNERIOIDES, Wedd. Chlor. And. I. p. 128, t. 19.

Var. B. EXSCAPUS: capitulo inter folia rosulata creberrime pinnatifido-dentata sessili. — Alpamarca, high Andes of Peru.

Var. y. SCAPOSUS: Scapo multibracteato 3-pollicari folia spathulata simpliciter dentata subæquante. At a lower elevation, between Culluay and Obrajillo.

Bilabiatiflora.

ONOSERIS ODORATA, Hook. & Arn. To this species (which includes O. Cumingii, Hook. & Arn.) belongs the Cursonia Peruviana of Nuttall. The bristles of the pappus, said by De Candolle to be biserial, are better described by Don as in a triple order, the innermost much larger and stouter, the outermost very short.

HYALIS ARGENTEA, Don. The receptacle is naked, with broad areolæ, between which one or two minute setulæ may often be found; these hardly answer to the character "fimbrillis callosis singulis sub achenio singulo." Pappus no more connate at the base than in all the allied genera, pluriserial, the bristles denticulate. Tails of the anthers plumose with cobwebby hairs. A more remarkable addition to the generic character, one which rather militates against Weddell's group of Plazieæ, is that the corollas, although more commonly uniform and bilabiate, are not rarely, in one or more of the flowers of the head, deeply and equally five-parted, the lobes narrow and revolute, in this and in some other respects indicating an affinity with Weddell's genus Aphyllocladus.