48 BOTANY OF THE VOYAGE OF THE SULPHUR. 
CHENOPODIACEZ. 
162. Ostons Barclayana, sp. n., monoica? procumbens, incana, foliis inferioribus obovatis 
obtusis, superioribus oblongis acutiusculis, omnibus mucronulatis integerrimis, bracteis fen 
suborbiculatis indurato-incrassatis margine dentatis extus farinoso-incanis nudis vel cristula duplici 
minima instructis—Bay of Magdalena. 
Planta tota albido-subfarinosa. Rami elongati, procumbentes. Folia inferiora fere pollicaria, late vel 
anguste obovata, basi in petiolum longiusculum angustata, superiora minora, angustiora, forma variabilia, 
suprema vix 3-4 lin. longa, utrinque acuta. Flores in axillis glomerati, masculi in specimine perpauci imperfecti, 
feeminei in quaque axilla 3-5. Bracteee fructiferee vix lineam longe et late, extus farinoso-incane et 
subspongios, intus indurato-cartilagines leves, se invicem arcte appressee et fere ad apicem vel demum 
omnino coalite, margine dentate, dente terminali majore, basi angustate et integerrime, dorso convexe, 
uninervie et basi nunc cristula vel dente duplici onuste, nunc nude. Pericarpium tenuissimum, hyalinum. 
Stylus fere ad basin bifidus. Semen verticale, testa brunnea tenui, embryone annulari. 
163. OBtonE microcarpa, sp. n., monoica, procumbens vel divaricata, pusilla, incana, foliis 
ovalibus oblongisve obtusis integerrimis basi vix angustatis, bracteis demum suborbiculatis indurato- 
incrassatis margine dentatis extus farinoso-incanis nudis vel cristula duplici minima instructis.—San 
Diego. 
Planta vix semipedalis, divaricato-ramosa, junior albido-farinosa, ramis tamen demum denudatis. Folia 
subsessilia, 2-3 lin, longa, 1-14 lin. lata, obtusa et rarius mucronulata, uninervia, basi rotundata vel cuneata. 
Flores in axillis glomerati, masculi plures, foeminei pauci. Perigonium in masculis 5-partitum, laciniis lineari- 
oblongis. Stamina 5. Bracteee femines fructiferee vix semilineam longe, ceterum iis 0. Barclayane haud 
dissimiles. Dentes proportione minores et cristule rariores. 
The above two species, perfectly distinct from each other, are, however, both of 
them probably allied to O. parvifolia Moq. Tand. Mon. Chenop. p. 73, or Atriplex 
parvifolia, Humb. and Kunth; the O. Barclayana comes nearest in the size of the 
fruit, but both differ in the perfectly entire leaves, and the ripe bractezee com- 
: pletely adherent to each other in their cartilagineous inner margins, whilst Moquin 
places the O. parvifolia in his first section, with the bracts free in the upper part. 
Kunth’ Ss ‘description i is, however, not explicit in this respect. 
164. Ontonr tetraptera, sp. n., divaricato-ramosa, canescens, foliis lanceolato-vel oblongo-linea- 
ribus obtusis integerrimis, bracteis ovatis apice paucidentatis fructiferis omnino coalitis Bee alis duo 
quam bracteze ipse multo majoribus instructis—From the coast of California, probably San Diego. 
Rami adsunt sesquipedales, duri, divaricato-ramosi, floribus foeminiis plerisque marcidis fructibusque 
copiosis, inter quibus flores masculos nullos detexi. Folia majora pollicaria, 1-2 lin. lata, basi breviter angustata. 
Flores in axillis dense glomerati. Bractem florifere anguste rhombee, acute, superne apertee et subdentate, 
basi coalitee et longe attenuate. Stylus exsertus, ultra medium bifidus. Bractere fructiferee valde aucte, 
ovate, fere 3 lin. longs, indurate, undique clausee, dorso uninerviee et ad utrumque latus nervi medii 
longitudinaliter cristato-alatm, alis 3-4 lin. latis bractearum apicem longe superantibus membranaceis 
reticulatis undulato-subcrispis margine dentatis, Semen verticale, maturum tamen non vidi. 
