Composite.] 



CALIFORNIA.— SUPPLEMENT. 



361 



1. Acourtia microcephala. De Cand. Prod. 7. p. 66. 



1. Calais Douglasii (De 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 brevem proferentibus, acheniis striatis 



omnibus glaberrimis muriculatis De Cand. Prod. 7. p. 85 (excl. syn.) C. Lindleyi. 



De Cand. ? I. 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 C. 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. Macrorbynchus Lessingii (Hook, et Am.) Borkhausia Lessingii. Hook, et Am. 



supra, p. 145 Troximon apargioides. Less. — De Cand. Prod. *7.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., I. 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 Vina de la Mar, near Valparaiso, marked " Bridges, No. 500," is M. Imvigatus. 

 As to Bridges' No. 501, the achenia are too young to show whether the costae ought to be considered ala; 

 or not. In several achenia in Mathews, No. 306, we have observed some of the costEe quite obtuse and 

 corky, while others were alate. 



. 1. Melacotln ix Californica. De Cand. Prod. 7. p. 192. 



1. Sonchus? Californicus ; herbaceus glaber, caule elato fistuloso simpliciter ramoso 

 striato, ramis longiusculis monocephalis, foliis lanceolato-linearibus attenuatis denticulatis, 

 rameis integerrimis, involucro hemispberico, squamis interioribus subaequalibus erectis 

 subbiserialibus, exterioribus minoribus squarroso-patulis, pedunculo apice squamato. 



2 z 



