330 
CALIFORNIA.— SUPPLEMENT. 
{Leguminosm. 
J. Medicago maculata. Sibth. 
Probably imported. 
1. Trifolium Macrcei. Hook, et Arn. in Bot. Misc. 3. p. 179. — T. albo-purpureum. 
Torr.etGr.FLl.p.m. 
These specimens exactly agree with those of Chili. The flowers are small, a little protruded beyond the 
silky calyces, dark purple, pale at the tips. It is a small slender spreading plant. Stems a span long. 
Stipules often ovate. 
2. T. dichotomwn ; erectum dichotomum paten ti-pilosum, foliis anguste obovatis denti- 
culatis, stipulis folioli dimidium mquantibus lato-ovatis acuminatis, capitulis lato-ovatis 
obtusis longe pedunculatis, calycibus sessilibus dense piloso-sericeis dentibus longis 
setaceis rectis submqualibus corollae longitudine. 
In many particulars this agrees with the preceding species, but it is, in every respect, a much larger and 
stouter plant, apparently growing quite erect. The stipules are i to | of an inch in length, the capitula more 
than an inch. The calyx is quite as long, or rather longer than the corollas, which latter appear to be of a 
purple colour. 
3. T . gracilentum } annuum glabrum, caulibus erectis gracilibus, foliolis obcordato- 
cuneatis serratis serraturis aristatis, stipulis e lata basi lanceolato-acuminatis integerrirais, 
pedunculis elongatis, floribus umbellatis demum deflexis, calycis glaberrimi striati denti- 
bus subulatis tubo longioribus corolla brevioribus inferiore reliquis sub ^ breviore, legu- 
mine dispermo stipitato. — Torr. et Gr. FI. \.p. 316. 
A slender, erect, annual plant, glabrous in every part. Corollas purple, apparently persistent, and be- 
coming scariose. 
4. T. (Involucraria) microcephalum. Ph. — Hook. FI. Bor. Ain. \. p. 133. Torr. et Gr. 
FI. \.p. 317. 
5. T. (Involucraria) amplectens ; parvura erectum glabrum, foliolis cuneatis dentatis, 
stipulis ovatis membranaceis cuspidatis, pedunculis axillaribus folium sequantibus, capitulo 
3-5~floro, involucro profunde 3-5-fido membranaceo lobis rotundatis membranaceis sub- 
incisis, calycis rigid! tubo brevissimo dentibus subulato-setaceis corollam floriferam parum 
brevioribus nunc bifidis, vexillo demum maximo inflato membranaceo, legumine oblongo 
transversim rugoso 4-spermo vexilli longitudine. (Tab. LXXVIII. — )Torr. etGr. FI. 1. 
p. 319. 
In size and general aspect this Trefoil accords with T. depaupei'atum, but there the involucre is obsolete 
and truncate, here (comparatively) large and deeply lobed. 
Tab. LXXVIII. Fig. 1. Capitulum of flowers ; fig. 2. Single flower; fig. 3. Capitulum of three fruits, 
with the persistent corollas : — magnified. 
6. T. (Involucraria) microdon; glabrum subdecumbens ramosum, foliolis obcordatis 
acute serratis, stipulis ovatis acuminatis integerrimis, involucris hemisphaericis multifidis 
nervosis capitulo denso parum brevioribus laciniis 3-5-fidis spinuloso-serratis, calycis 
