146 MR. J. MIERS ON TWO GENERA OF PLANTS FROM CHILE. 
The generic features of this genus may be thus characterized :— 
OXYCLADUS, gen. nov. 
Calyx gamophyllus, 5-dentatus, persistens. Corolla gamopetala ; tubo cylindrico, calyce 2-3-plove lon- 
giore, vix gibbo, limbo brevi, 5-lobo, sub-bilabiato lobis rotundatis; labio inferiori 3-lobo, lobis 
paululó majoribus; superiori 2-lobo, in æstivatione imbricativà semper exteriori. Stamina 5, 
corolla lobis alterna, quorum 4 didynama, et quinto superiori brevissimo ananthero, 2 inferioribus 
longioribus faucem attingentibus, 2 lateralibus istis tertio brevioribus; filamenta paullo supra basin 
tubi inserta, filiformia, glabra; anthere rotundatæ, reniformes, cordatz, 2-lobz, connectivo dorsali 
cordiformi adnatz et huic in medio loborum præfixæ, lobis ovalibus divaricatis anticé longitudina- 
liter dehiscentibus. Ovarium oblongum, pilosum, glandulä annulari brevi 5-lobä glabrá cinctum, 
2-loculare; ovula in utroque loculo circiter 6, superné per paria collateralia, e dissepimenti nervo 
longitudinali seriatim appensa. Fructus sub-baccatus, calyce immutato clausus. Nur ovatus, acutus, 
4-sulcatus, apice 4-denticulatus, 1-locularis, monospermus; semen loculo conforme, latere superiori 
funiculo brevi appensum ; testa chartacea, favoso-reticulata ; endopleura membranacea. Embryo ex- 
albuminosus; radiculá superiori crassä, apice mammilleformi; cotyledonibus istà 3-plo longioribus, 
ovatis, plano-convexis, valdé crassis. _ 
Arbuscula Mendozensis viv aphylla, spinosa, ramosissima, glaberrima, ramis nitidis, erectis; flores pauci, 
aggregati, parvuli; corolla cerulescens. 
1. OXYCLADUS APHYLLUS; ramulis erectis virgatis teretibus nitidis rubentibus spinä ter- 
minatis; junioribus oppositis spinzeformibus floriferis, foliis bracteiformibus minimis 
sub flores aggregatis (an bracteis?) linearibus glabris incurvis, floribus 2-3 fascicu- 
latis breviter pedunculatis, calyce glabro, corollà extùs pubescente pilis recurvis 
cerulescente, ovario piloso. 
Hab. prope Mendozam ad pedum Andium. Vernac. Aja. v.v. 
This is a shrub about 8 feet high, with the habit of a woody leafless broom. The 
branches have a very smooth bark, of a chestnut-brown colour, almost polished, and. the 
young branchlets that bear the flowers look like spines, being subulate and mucronate, as 
are also the ends of all the branches: the axils are opposite, but frequently one branch, 
or both, are barren, which adds more to its spinescent appearance. About two or three 
flowers spring out, of each axil on the spine-like branchlets, bearing at the foot of the 
peduncles several minute, curved, smooth, linear leaflets, about half a line in length. The 
peduncles are about a line long ; the smooth tubular calyx, crowned with five somewhat 
unequal, short, triangular teeth, is 3 lines in length; the corolla is tubular, of a bluish 
colour, and about 6 lines long; the tube is little more than a line in diameter, is pubescent 
str with reflected hairs; it has a bilabiate border formed of five short rounded lobes, 
x à den iei pr and thrown back; the attachment of the filaments at their 
okies Br ie see lor face of the anthers, and on the connective between the two 
roc led pies general rule of the Order. The fruit is a subfleshy 
uu a. Pe in the persistent and scarcely enlarged calyx, and it contains 
by four minute teeth “à wi IM es aus diameter, pointed, 4-grooved, and surmounted 
dissepiment, which = uus = ar is ns) ADMET à OT Haeo E she 
seen the abortive ovules: the samst one side of the cell, and upon which may still be 
; “he embryo is exalbuminous, with an obtuse superior radicle, 
