CompositcB.'] 
CALIFORNIA.— SUPPLEMENT. 
361 
1 . Acourtia microcephala. De Cand. Prod. 7. p. 66. 
1 . Calais Douglasii (Z)e Cand.); scaposa glabriuscula, foliis lineari-lanceolatis remote 
pinnatifidis, segmentibus linearibus brevibus, pappi paleis 5 basi dilatatis adpresse vil- 
losis sensim in aristam longam acuminatis, acheniis disci adpresse villosis radii ad costas 
scabris. — De Cand. Prod. 7. p. 85. 
De Candolle refers to this genus the Hymenomena of Hooker Flor. Bor. Am. The two species, however, 
which are there described, differ from De Candolle’s character, by having the paleae of the pappus at least 
twice as numerous, the dilated part at the base not scariose, much smaller and nearly inconspicuous, while 
the bristle into which it passes is more slender, much longer, and pure white ; the involucre, moreover, is 
decidedly imbricated, like that of Scorzonera or Troximon, and the achenia short, glabrous, and not attenu- 
ated at the apex. 
2. C. linearifolia [De Cand.); subscaposa vel caulescens basi^foliosa puberula, foliis 
linearibus integerrimis vel pinnatifidis laciniis lineari-acuminatis, pappi paleis albis 
glabris longe scariosis apice bifidis e sinu setam brevera proferentibus, acheniis striatis 
omnibus glaberrimis muriculatis. — De Cand. Prod. 7. p. 85 (excl. syn.). — C. Lindleyi. 
De Cand. ? 1. c. (excl. syn.). 
C. Lindleyi seems merely a cultivated form of this species. In the native specimens the leaves are either 
quite entire or almost pinnati-partite. The pappus is so different from that of G. Douglasii, that we should 
scarcely have referred the two plants to the same genus ; or if they be considered congeners, the character 
might be so modified as to admit also the two species of the Flor. Bor. Am. 
1. Macrorhynchus Lessingii [Hook, et Arn.) — Borkhausia Lessingii. Hook, et Arn. 
supra, p. 145. — Troximon apargioides. Less. — De Cand. Prod. l.p. 252. 
In addition to the description we have already given in this work, we may state that the achenia are fusi- 
form, deeply striated with ten furrows, the ribs obtuse and not winged ; the filiform stipes of the pappus is 
nearly thrice the length of the achenium, and dilated at the apex into a small disk. The achenia and pappus 
of the outer and inner florets are precisely alike. Having published our former notice before we were 
acquainted with Lessing’s Synopsis of the genera of this order, we placed this in Borkhausia ; but now that 
that genus has been separated into others, the Californian plant must unquestionably be removed to the same 
as the Chilian species. We may here state, that under the name of M. Chilensis, we, in the Comp, to the 
Bot. Mag., l.p. 31, and II. p, 42, intended to include all the Chilian species of DC., nor are we yet certain 
that they are really distinct ; but, with reference to Fischer and Meyer, as well as De Candolle, our speci- 
mens from Valparaiso (Mathews, No. 306, and Cuming, No. 745), as also from Falkland Island, belong to 
M. pterocarpus, and that from Viiia de la Mar, near Valparaiso, marked “ Bridges, No. 500,” is M. Icevigatus. 
As to Bridges’ No. 501, the achenia are too young to show whether the costae ought to be considered als 
or not. In several achenia in Mathews, No. 306, we have observed some of the costae quite obtuse and 
corky, while others were alate. 
1. Melacothrix Californica. De Cand. Prod. 7. p. 192. 
1. Sonchus? Californicus; herbaceus glaber, caule elato fistuloso simpliciter ramoso 
striato, ratnis longiusculis monocephalis, foliis lanceolato-linearibus attenuatis denticulatis, 
rameis integerrimis, involucre hemispherico, squamis interioribus sub^qualibus erectis 
subbiserialibus, exterioribus minoribus squarroso-patulis, pedunculo apice squamato. 
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