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have to travel far, I feel sure, to find others of similar character, as it was here that 
Mr. Nelson and I found Angelica nelsoni, Eryngium montanum, Ginanthe pringlei, and 
other new. species. We may infer that they are extremely local in their habits. 
Neonelsonia ovata and Arracacia vaginata grew in the moist woods on the borders of 
these grassy openings and find congenial situations here and there throughout that 
range. 
Mr. Pringle collected his Umbelliferie here in October, all at an alti- 
tude of 9,000 feet. Mr. Nelson spent ten days (September 10 to 20) in 
the highest part of the mountains. His camp was located in one of the 
high meadows mentioned above, at an altitude of about 9,500 feet. Two 
species are from the foothills. His camp was about 18 miles southwest 
of the city of Oaxaca. 
The following species were collected here: 
Species. Altitude (feet). | Species. Altitude (feet). 
Angelica nelsoni.......-. 9,000  Hryngium montanum.... 9, 000 
Arracacia nelsoni......-. 7,500 to 9,500 Neogoezia gracilipes....- 5, 500 to 7, 500 
Arracacia vaginata....... 9,000  Neonelsonia ovata......- 7,500 to 9, 500 
Eryngium deppeanum....| 5,500 to 7,500) Genanthe pringlet....... | 9, 000 
Eryngium longirameum.. . 7,500  Osmorrhiza mecicana....) 10, 000 
MOUNT ZEMPOALTEPEC. 
This peak is situated some 50 niles east of the city of Oaxaca and 
is the culminating point of a high ridge, mostly of 7,000 to 9,000 feet 
altitude, running north and south. Mr. Nelson thinks its altitude is 
about 11,400 feet, although it is generally given as 15,100 feet. The 
main peak is rocky and covered with pines. Mr, Nelson spent eight 
days collecting upon the slopes and peaks of this mountain. Seven 
species of Umbelliferie, represented by eight numbers, were collected. 
Mr. Pringle did not visit this region. 
The following species were collected here: 
| 
Species. | Altitude (feet). | Species. Altitude (feet). 
a | __ oo 
Arracacia filiformis...--. | 11,400  Micropleura renifolia...| 7,700 to 8, 000 
Daucus montanus .....--- | 700 to 8,000 | Coarana purpured....-. | 10,000 to 11, 000 
Eryngium bromelivfolium . 11,400 | Ottoa ananthoides ....-. | 8,000 to 11, 000 
Eryngium longirameum .. | 7,700 to 8, 000 
* CUICATLAN, 
The town of Cuicatlan is located in the bottom of the valley of Cui- 
catlan, at an altitude of only 1,800 feet. The neighboring region is 
extremely arid and the vegetation is very scanty. Two species of 
Hydrocotyle were obtained by Mr. Nelson. On the high mountain 
ridge to the west three other species were collected. 
