1889. | NEW YORK ACADEMY OF SCIENCES. 73 
styles; embryo not seen. Fort Verde (179). Though ex- 
hibiting some diverse characters, to be included in Section 
Corymbose, Benth. 
Polygonum Bistorta, L. Mogollon Mts. (84). 
PoLy@oNuUM EMERSUM (Michx.), P. amphibium, L., var. emer- 
sum, Michx. Flor. Bor. Amer. i. 240 (1803); P. coccinewm 
terrestre, Willd. Enum. 428 (1809); not P. amphibium, var. 
terrestre, Willd. Sp. Pl. ii. 443 (1799); P. amphibium, 
var. Muhlenbergit, Meisn. in DC. Prodr. xiv. 116 (1856); 
P. Muhlenbergit, Wats. Proc. Amer. Acad. xiv. 295 (1879). 
ua. terzesire,, b. 8. Ps Im Prel. Cat. Plants N. Y. (1888). 
Rattlesnake Forks, Mogollon Mts. (93), 
RumeEx ARIZONICUS, 7. sp. Stem smooth, striate, a foot or 
more high; leaves a foot long, obovate-spatulate, tapering 
very gradually into the elongated and narrowly margined 
petiole, the apex abruptly acuminate, slightly scabrons on 
both surfaces; lower sheaths more than 0.8 in. long, mem- 
branaceous; inflorescence spicate in the upper axils, dense; 
perianth of three smaller outer and three larger inner sepals; 
stamens six, filaments very short. Fruit not seen. Species 
probably to be associated with R, hymenosepalus, but with 
very different foliage. Fort Verde (300). 
Oxyria digyna (L.), Campd. San Francisco Mts. (33). 
LORANTHACE A, 
Arceuthobium cryptopodum, Engelm. Baker’s Butte, on pine 
(113). 
Phoradendron flavescens (Pursh), Nutt. Fort Verde, on cotton- 
wood (164). A variety. 
PLATANACE, 
Platanus Wrightii, Wats. Beaver Creek (352). 
EUPHORBIACE. 
Luphorbiaa lbomarginata, T. & G. Near Fort Verde (206). 
Luphorbia glyptosperma, Engelm. Fort Verde (155). Named 
by Dr. C. F. Millspaugh. 
Euphorbia Palmeri, Engelm. (?) Western base of San Francisco 
Mts. (13). 
Croton Texensis (Kl.), Muell., Arg. Fort Verde (213). 
CUPULIFERA. 
Quercus undulata, Torr. var. Wrightii, Engelm. Tonto Basin 
(142). 
