Rydberg : RocKv Mountain flora 445 



portion. The latter does not agree with the description of Ga- 

 lardia acaulis. 



I have come to the conclusion also that Tetraneuris eradiata A. 

 Nels. is but a rayless form of T. acaulis. My no. io6 contains both 

 radiate and rayless specimens. The disk-flowers of T. eradiata 

 are said to be "almost orange." They usually turn more or less 

 orange in age in T. acaulis and the type of T. eradiata is pretty 

 well advanced in age. There are no other distinctive characters 

 either in the description or in the specimens that I can see. 



Even Tetraneuris simplex is not too good a species and it is 

 very close to T. acaulis on one hand and T. trinervata Greene on 

 the other. The latter I had reported for Colorado in my Flora of 

 Colorado; but it is wholly ignored by Nelson. As the New^ Manual 

 includes northern New Mexico, the type locality even of T. 

 trinervata, viz., Sandia Mountains, N. M., between Santa Fe 

 and Albuquerque, is within the range. 



What Professor Nelson's interpretation of Actinella acaulis 

 really is, is hard to tell, for some of the specimens he has distributed 

 under that name and Tetraneuris acaulis belong to T. lanata 

 and others to T. acaulis caespitosa A. Nels. Most of them were 

 distributed before the latter was segregated. Both E. Nelson 

 432Q, distributed as T. acaidis, and A. Nelson 4607, distributed 

 as T. lanata ?, match perfectly a part of the type of Nuttall's 

 Actinella lanata in the Torrey herbarium. All three are very 

 young. 



It is evident that Actinella acaulis caespitosa A. Nels. is more 

 closely related to A. lanata than to A. acaidis. It has the loose 

 pubescence of A. lanata, a character best seen in age. I am in- 

 clined to think that it is the same as Tetraneuris brevifolia Greene, 

 although I have not seen the type of the latter. It should then 

 bear that name, unless it is reduced to a variety of A. lanata. 

 The plant was first collected by James in Long's Expedition 

 on James Peak (now Pikes Peak), the type locality of T. brevi- 

 folia. Torrey* referred this specimen to Actinea integrifolia 

 Kunth; but in Torrey and Gray's Flora, t it was referred to 

 Actinella lanata with the following remark: "The specimen of 



*Ann. Lye. N. Y. 2: 213. 



t2:382. 



