112 ERYTHEA. 



Associated with the typical species of Isocoma in southern 

 California, is another shrub very like it in foliage and 

 general appearance, but A^ith very different inflorescence 

 and different fruit. I refer to what has usually been called 

 Aplopappiis sqiuirrosiis. When, in 1886, on the islands off 

 the coast of southern California, I discovered those remark- 

 able shrubs to which 1 assigned the name Hazardia, I per- 

 ceived clearly that with these the so-called Aplopappiis 

 sqitarrosus was strictly congeneric. I do not find that any 

 older name exists by which Hazardia is superseded. I 

 therefore now propose to transfer to Hazardia the shrub I 

 have mentioned, and its next of kin. I strongly suspect 

 that a number of South American shrubs published under 

 Aplopappiis and Pyrrocoma belong here; but I need to see 

 more material of them than is at present accessible. 



The character of the genus as given in the first volume of 

 PUtonia need only be so altered as to admit some species 

 with well developed ligulate ray-corollas, and others wholly 

 destitute of ray flowers. A good mark of this genus, as con- 

 trasted with other plants that have been referred to Apia- 

 pappus, is the fact that the disk corollas change from yellow 

 to red or purple, as in Aster, Coreihrogyne, etc. 



H. squarrosa. Aplopappns sqnarrosiiSj Hook. & Arn. 

 Bot, Beech. 146 (1833). Pyrrocoma grindelioides, DC. 

 Prodr, V. 350 (1836). Asier grindelioides, O. Ktze, 1. c. 



From near Monterey, California, southward to the Lower 

 Californian peninsula, and on the coast islands. 



H. Orcuttii. Aplopappns Orcidtn, Gray, Proc. A 

 Acad. XX. 297 (1885); Syn. Fl. Supplem. 446.-Lower 



California. 



H. Berberidis* Aplopappns Berheridis, Gray, Syn. FL 

 126 (1884). Aster Berberidis, O. Ktze, 1. c— Lower Cali- 

 fornia. 



H. cruenta. Aplopappns cruenius, Greene, Pitt. ii. 17 

 (1889).— Coronados Islands, off the coast of Lower California. 



ra. 



