344 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



plant long known as Calochortus bonplandianus, calling it Calochor- 

 tus purpureus, at the same time allowing the other of the two earliest, 

 Fritilhria barbata, still to pass under the substitute name Calo- 

 chortus jlavus. Sereno Watson, four years later, described a yellow- 

 flowered form from Oaxaca, dedicating it to the collector, Doctor 

 Ghiesbreght, and in the same paper a second species, Calochortus 

 spatulatus. The first of these is the southernmost species of the 

 genus; the second I take to be nearly allied to the problematical 

 Calochortus fuscus Schultes, which, however, I am not able to associ- 

 ate positively with C. spatulatus and have preferred to place as a 

 species inquirenda. 



Exploration of the Mexican flora by Americans led to the publica- 

 tion in the same year by both Dr. E. L. Greene and Doctor Watson 

 of a form from northern Mexico. Under Calochortus venustulus 

 Doctor Greene published, in January, 1888, the diagnosis of a plant 

 collected in Durango; and in May Doctor Watson published Calo- 

 chortus madrensis based upon specimens collected in Chihuahua. 

 Doctor Greene recognized the species of Watson to be his, and in 

 November of that year, having come into possession of better material, 

 he added to his previous description. A later species, one noted 

 for the extremely dark color of the flowers, has been dedicated by 

 Dr. B. L. Robinson to the veteran collector of Mexican plants, 

 Dr. C. G. Pringle. 



Of the two new species proposed here the first, Calochortus exilis, 

 is a small plant from Hidalgo distributed by Doctor Pringle as Colo 

 chortus ghiesbreghtianus ( a slip for ghiesbreghtii) to which it is closely 

 related. I have taken the name from specimens collected by Ehren- 

 berg and sent to the Gray Herbarium as " Cyclobothra exilis Kl." 

 The other new one proposed is from the type locality of Calochortus 

 pringlei and, like that species, is dark purple in color, but the flowers 

 differ widely and the nodding habit separates it from all other purple 

 forms. Of this unique species I have seen but one sheet, that in the 

 Gray Herbarium, and Doctor Pringle knows of no other. 



Species of other subgenera have been reported from northern 

 Mexico and Lower California. Mr. T. S. Brandegee in 1889 a reported 

 two species which he called " Calochortus luteus Dougl. and C. splen- 

 dens Dougl./' the former from Las Huevitas, the latter from San 

 Pablo. I am told by him that these specimens are not in his collec- 

 tion but had perhaps found their way into that of the California 

 Academy. He adds: "At least one of them is incorrectly named." 

 Miss Eastwood, however, had two sheets from the peninsula, one 

 from Ensanada, collected by Mr. F. E. Barkelew, and one from Valle- 

 deros Creek, San Pablo, collected by Mr. Brandegee, and also one 

 from the Coronados Islands, collected by Dr. E. L. Greene, all bearing 



oProc. Calif. Acad. II. 2: 209. 1889. 



