TJB. XC.
Herba annua, spithamæa, pilosiuscula, ramis dichotomis divarieatis. Folia inferiora petiolata, oblongo-
linearia. Bracteoe ad dichotomias, et sub floribus amplexicaules, stellato-trilobæ, lobis lato-ovatis apice aristulatis.
Involucra inferiora in dichotomiis solitaria et sessilia, superiora ad apices ramorum approximata.
Dentes involucri subulato-aristati, subpungentes, exteriore longiore. Perianthium pedicello suo æquilongum,
laciniis subæqualibus.
PT ERO ST EG IA . F. et M .
Flores hermaphroditi vel polygami solitarii involucro bilobo fructífero ampliato dorsoque cristato obtecti. Peri-
anthum 6-(interdum 5-) partitura, herbaceum, persistens. Stamina 6 (vel 5). Styli 3, brevissimi. Stigmata
capitata. Ovarium trigonum, uniloculare. Ovulum unicum, basilare. Caryopsis triquetra, involucro
inclusa. /Semen erectum. Embryo in axi albuminis farinacei; supera.— Herba annua, ramosissima,
prostrata, fa c ie Drymariæ. Folia apposita, obovata, vel subreniformia, integra vel apice
emarginata ; ochreæ nullæ. Flores axillares, subsessiles, minuti.
P . drymarioides. F . et M . ind. sem. hort. Petrop. 1835; Am . Se. nat. N . S. 5. p . 3 04.
( T a b . X C .)
In our specimens the involucre is only 2-!obed, not 2-leaved, and we have not observed more than three
stamens in a fiower; many of the female flowers want stamens entirely.
Tab. XC. Fig. 1. Portion of the flowering stem ; /c?. 2. Floral bractea ; 3 . The same laid open ;/< 7. 4.
Flower ; f g . 5. Stamen ; f g . 6. Pistil ; f g . 7. Fructiferous bractea ; f g . 8. Achenium within the persistent
perianth :—magnified.
O r d . L . C H E N O P O D IE Æ . B e Cand.
-Moq. Tend, in A nn. Sc. nat. N . S.1. S u æ d a /rM¿2C0sa. Forsk.- 4. p . 217. Salsola
fruticosa, Auct.
1. Roubieva anthelmintica ? Var. foliis liastatis.
This differs considerably from the more usual state of the plant {Chenopod. antkelminticum L., axiA Ambrina
anthehnintica, Spach, hist. nat. des veg. 5. p. 298) on account of the decidedly hastate and almost triangular
leaves : the flowers, too, are in a simple terminal elongated interrupted spike. The genus Roubieva of
Moquin Tendon, distinguished from Chenopodium by its vertical seed, and from Agathophytum by tho
keeled segments of its perianth, which form a pentagonal covering to the nut, was constituted for one or two
South American species, but ought to include the present plant and a few others indicated by Spach under
his Ambrina, which does not differ.
GRAYIA. Nov. Gen.
Flores dioici, ebracteolati, spicato-subracemosi. M a s c . Perianthium 5-partitum, lacinis æqualibus in-
appendiculatis. Stamina 5, receptáculo inserta, perianthii laciniis opposita. Sguamuloe hypogynæ nullæ.
r F oe m . Perianthium monophyllum, marginato-alatum, compressissimum, apice emar^natum, muücum, intus
supra medium utriculatum. Ovarium in fundo utriculi sessile, anguste oblongum apice attenuatum, uniloculare,
uniovulatum. Stylus subulatus, basi articulatus ; stigmata duo, filiformia, exserta, hirsuta.
Fructus compressus, orbiculatus, perianthio aucto membranaceo venoso persistente inclusus, styli basi apicu-
latus. Semen verticale, compressum, orbiculatum, pericarpio tenui arcte adhærens testa, membranacea.
Embryo hippocrepiformis, periphericus, albumen farinaceura cingens. Radicula infera.—Fruticulus erectus,
ramosus. Rami apice spinescentes, cortice albido tecti, juniores pubescentes. Folia solitaria vel fa sc iculata,
oblongo-lanceolata, basi cuncata, júniora puberula et carnosula integerrima.
.1