CONTRIBUTIONS TO WESTERN BOTANY NO. 15 109 



Kilometer 41. All cacti present, Agave vexans. 



Peon, another army camp, circular rifle trench around station, full of 

 houses or rather huts 4-6 feet high. Bigelovia, Amarantus fimbriatus, 

 Cardiospermum. All cacti still, Aplopappus gracilis, Erigeron like flagel- 

 laris but taller, Cj-perus. A woolly long grasa spike, Afuhlenbergia 

 debilis, Bouteloua annual. Now among volcanic hills, a long-spiked 

 Sporobolus, Prosopis Atriplex, cardons, bottle-brush, Franseria ambro- 

 sioides, now some big cardons. Brush 10 feet high. Big cardons com- 

 mon now. Black basalt on the west. Larrea common. 



Kilometer 25. Now at a village where Yaquis years ago raassacref! 

 a whole train load of people. Crosses mark the place. A windmill and 

 cottonwoods. 



Piedra. Kilometer 23. Now a low, blue, and round flat Opuntin, 

 ^hiny. Now lava in tiers. Rifle pits. Tribulus, Arg}^arania, Sida. 

 J liysalis, Cleome Sonorae ? Larrea everywhere, big cardon. 



Ortiz. November 23, 1926. Just saw a 3oe walkine on two feet, 

 one front, one back. "Soldiers sfiU on train. 'Th 



c 



soldiers. Cloudy and cool. Dates. Saw some helmet hats. House 

 mostly with bamboo rods and dirt roofs and floors and mostly one roon^ 

 Tables of boards and oil cloth. Most of the women wnth stockings and 

 shoes. The soldier camp is on the edge of ^e town. Asclepias su^"- 

 lata,^ Encelia cordifolia, Argemone Mexicana, Nicotiana trigononhylla, 

 Pectis angustifolia ? Allionia incarnata. Xong^eaved EnceTia, Carphe- 

 phorus junceus, a shrub with flat and reddish pod like a Prosopis, palo 



verde, also Parkinsonia aculeata, H>Tnenoclea, mesquit, Cardiospermum 



^ow the Sonora river. Cereus T^urberi, Pringlei probably, a .=o ()irp>a. 

 Cardiospermum, mistletoe. Brush now 2-6 feet high. Much low Acar-n, 

 palo verde. No grass. Later some grass. Bursera, 01iie\-a. Encel-a 

 cordifalia. Miicli' rouqiiieria, Franseria amhrosloides. 



Moreno. Ipomoea with blue flowers and small leaver. MartvDia 

 shrubby and not dense, Cardiospermum, 2 species of Cylindropunha. 

 mesquit. No Larrea, palo verde, Bursera. Agave vexans. Low bills 

 ^vith Lysiloma on the sides. Amarantus fimbriatus. Ranges of mountain* 

 on both sides now, 10-15 miles off. Brush 10 feet high. Much 1«8 

 cactu5. Low hill on east wit^ palo bianco (Lysiloma). Much gras«!. 

 mesquit, palo verde, Zizyphus, bottle-brush. , 



^ Tores station, 26 miles from Hermosillo. Argemone Mexicana. 

 Limestone hill on the west. Philibertia, bottle-brush with 5 nbs, ( ercu* 

 Thurberi, Olneya. Little grass. Encelia cordifolia. More gra.ss. Shnib- 

 T,7 1^15 feet high, botUe-brush grows in tufts.^^Nw low and conic. 



around in the distance. Typha angustifolia 



B amboo 



^'•ibuloides, long-leaved Encelia. Sorgum Halapense, Bamboo^ A lew 

 ^^d spreading bush or herb with heads of yellow flowers, and Truit with 

 «'nc^s wider than in Abroriia. Xanthium strumarium, sugar cane, thy- 

 s^^Iis, Big Tuna, vellow oranges, Clematis, small leaved Ruroex, date^ 



