121 



Cereus caespitosus Eugelm. The flowers are a bright red. Common on stony 



ridges and mountain sides. Fort Huachuca. April and May. No. 475. 

 Cereus f^p. Not very common. A very free bloomer with bright showy scarlet flowers. 



Fort lliiachuca. April and May. No, 429. 

 Cereus pectiiiatus Engolm. (?) A single fruiting specimen obtained. Fort Hua- 



cliiica. April and May. No. 447, 

 Opuntia Engelmanni Salm. Flowers yellow. Fort Huachuca. April and May. 



No. 477. 

 Opuntia hystricina Eugelm, and Blgel. "It grows about a foot high with several 



joints." Flowers yellow, lower third red. On stony ridges. Fort Hnachuca, 



April and May. No. 474. 

 Opuntia arborescens Engelm. This cactus is 2 to 3 feet high with flowers of a 



beautiful crimson. On atony plains and hillsides at Fort Hnachuca. April and 



May. No. 476. 

 Pseudocymopterus montanus var. teuuifolia Coult. & Rose. Rev. p. 75. {Thaa- 



pium (?) montantim var. tenaifoUtim Grai/.) Common at Willow Springs. June 



10 to 20. No. .'iOO. Also collected here by Rothrock. 

 Cornus stolonifera Michx. fide Coulter & Evans. A shrub 4 feet high. Willow 



Springs. June 10 to 20. No. 518. 

 Loiiicera ciliosa Poir. About 2 feet high with drooping habit. Found in ravinea 



high up the mountain side. Willow Springs. June 10 to 20. No, 537. 

 Sambucus glauca Nutt, Also collected by Rothrock, Willow Springs. June 10 to 



20. No. 292. 

 Symphoricarpos oreophilus Gray. Willow Springs, June 10 to 20, No. 521. 

 Galium trifidum L. Grows along creeks. Willow Springs. June 10 to 20. No. 514. 

 Houstonia Wrightii Gray. Grows in low places and on hillsides. "Flower white 



with pink tip and corolla." Willow Springs. June 10 to 20. No. 528. 

 Bouvardia triphylla Salit^b. The corolla very slender. Collected near Fort Hna- 

 chuca in 1889. Letter G. 

 Valeriana sylvatica Banks. Willow Springs. June 10 to 20. No. 526. 

 Valeriana edulis Nutt. A common plant. Willow Springs. July 5 and 6. No, 618. 

 Stevia Plummerae Gray, Collected in a canon near Fort Hnachuca, Arizona. 



1889. Letter A. 

 To the stations given in Syn. Flora we here add the following, viz: Mogollon 



Mountains, New Mexico, Rusby (1881), No. 152^ ; Mexico, Pringle (1887), No. 1260. 

 Stevia serrata Cav. Collected in a canon near Fort Hnachuca, 1889. Letter B. 

 Eupatorium occidentale Hook., var. Arizonicum Gray. A single specimen from 



near Fort Hnachuca, Arizona. 1889. Letter D. 

 Carphochaete Bigelovii Gray. A single specimen from a cafion near Fort Hna- 

 chuca, Arizona. 1889. Letter C, Pringle is the only collector who got the plant 



from Arizona, according to Syn. Flora. We have specimens from Rusby, 1881, 



collected at the San Francisco Mountains. 

 Aplopappus spinulosus DC. Collected in a canon near Fort Hnachuca, Arizona. 



1889. Letter F. 

 Solidago MisBouriensis Nutt. Var. Not very common, along river bottoms. Fort 



Apache. June 21. No. 602. 

 Aster ericaefolius Rothrock. Common on mesas and hillsides at Fort Hnachuca. 



April 26 to May 21. 

 Erigeron divergens T. & G. The stems lie close to the ground. Upper end of a 



canon under bushes. Near Fort Hnachuca, Arizona. April 26 to May 21. Nos. 



450, 494. 

 Erigeron flagellaris Gray. Willow Springs. June 10 to 20. No. 503. 

 Baccharis Wrightii Gray. Grown on second bottoms of Salt River. June 21 to 



aO, No, 580, 



