1892. | Briefer Articles. ae 
together with its tributaries, were in many places covered with large 
clumps of Prunus demissa Wal. and Rhamnus Californica Esch., with 
now and then a large cottonwood or black willow showing above them. 
Platanus racemosa Nutt., Fraxinus pistacizfolia Torr., and Juglans 
Californica Watson, were frequently seen nearly covered with the long 
and heavy vines of Vitis Arizonica Engelm., which grows in great 
abundance in nearly all the valleys of the territory. In many places 
the river bed ‘was a complete tangle of Fallugia paradoxa Endlicher, 
Baccharis glutinosa Pers. and Baccharis salicina T. & G., while in the 
open places Petunia parviflora Juss., Chamesaracha coronopus Gray, 
Euphorbia polycarpa Benth. var. aristida Watson, Euphorbia serpylli- 
folia Pers., Euphorbia albomarginata T. & G., Croton Texensis, Miill., 
Polanisia trachysperma T. & G. and Gaura parviflora Dougl., sprang 
up between the stones or out of the clear white sand. Extending back 
to the mountains on each side of the river was a dense chapparal of 
Several varieties of Quercus undulatus Torr., densely loaded with 
acorns. In some localities these shrub oaks fruit so profusely that 
Swine ranches are maintained upon the acorns alone. Mixed in with 
these oaks were found Arctostaphylos tomentosa, Dougl., Arctostaphy- 
los Nevadensis Gray, Arctostaphylos pungens HBK., Acacia Greggii 
Gray, and Zizyphus lycioides Gray; while underneath them were grow- 
ing Hedeoma Drummondii Benth., Verbena ciliata Benth., Mentzelia 
Wrightii Gray, and several species of Eriogonum. An Opuntia was 
eccasionally seen, while here and there a Yucca baccata Torr. ex- 
‘ended its long filamentous leaves in all directions, or an Agave Parryi 
ngelm. projected its scape high in the air. A few straggling spears 
of 8Tass were found, mostly Bouteloua racemosa Lag. and Muhlenber- 
oe Texana Thur. with a frequent bunch of Hilaria rigida Scrib. At 
Sseason the annuals were mostly scorched and destroyed by the 
Prolonged drouth, 
Traveling several miles northwestward from Big Bug, I entered the 
Canon to wh: 
Ae ag or more miles up the cafion. : 
ate lined “i = ie the banks of the stream on either weornirin $s 
the wat, with the beautiful Aquilegia chrysantha Gray. Growing trom 
‘r were large bunches of Juncus tenuis Willd. and Scirpus pun- 
