78 I. M. JOHNSTON 



incorporated into the catalogue along with the name of the col- 

 lector and the number of the collection. If the specimens form- 

 ing the basis of record were not available for study then the pub- 

 lished record was copied verbatim and its location given. Our 

 list, thus formed, now includes 315 species and varieties of native 

 plants. Introduced plants, which number about 20, have not 

 been included in the catalogue. 



Many notes on distribution, abundance and habitats were 

 made during our exploration of the mountains. These notes, 

 supplemented by less extensive ones made previous to 1917, form 

 the basis for the discussion under each species treated. The dis- 

 cussions of systematic relationships are the outcome of a careful 

 study of herbarium material and of much time spent over the 

 taxonomic literature. It is perhaps unnecessary to state that all 

 statements concerning distribution, etc. are founded on, and con- 

 cern only, the species as it occurs in the San Antonio Mountains. 

 In a majority of cases the habitat, zonal distribution and abun- 

 dance is the same as it is in the San Bernardino or San Jacinto 

 Mountains but this, however, is not always the case. 



For invaluable help in the preparation of this paper the author 

 is under especial obligations to Mr. S. B. Parish of San Bernar- 

 dino. His help in taxonomic difficulties, his suggestions and 

 kindly criticisms all warrant the writer's sincere gratitude. To 

 Dr. H. M. Hall of the University of California we are also much 

 indebted for his courtesy and interest, and especially for the privi- 

 leges granted us while working in the herbarium under his charge. 

 We wish to acknowledge of the help of several other taxonomists, 

 among whom are Mrs. Agnes Chase, Dr. J. M. Greenman, Dr. 

 W. L. Jepson, Prof. M. E. Jones, Mr. J. F. Macbride, Mr. K. K. 

 Mackenzie, Mr. W. R. Maxon, Dr. B. L. Robinson, Dr. J. N. 

 Rose, Dr. P. A. Rydberg, Mr. Camillo Schneider and Mr. G. P. 

 Van Eseltine. 



OPHIOGLOSSACE.E 



Bolrychium lunaria (L.) Swz. Not uncommon in springy ground near 7000 ft. 

 alt. in Coldwater Fork Lytle Creek. Here in the Upper Transition Zone it 

 grows with Limnorchis, Sisyrinchium, Trifolium, Juncus Mertensianus, Carex 

 aurea celsa and C. subfusca. The plant does not grow in the mucky part of 

 the marsh but seems to grow in the better drained portions near its head. 

 Det. W. R. Maxon. (No. 1358, 1757, 2080.) 



