OF ARTS AND SCIENCES. 169 



These specimens, from the original locality of the species, perfectly 

 agree with Bentham's description, but would be called rather grayish- 

 hoary than snow white ; the leaves are very deeply and almost pecti- 

 nately dentate, supported by extremely short petioles ; the appendages 

 of the dark red or almost black glands are very unequal, as they com- 

 monly are in Anisophyllum, and in no species more so than in E. ade- 

 noptera, Bertol. {E. dioica, H. B. K.), the posterior ones being always 

 the largest ; in the specimens before me the posterior appendages are 

 one line broad and half as long, the anterior ones scarcely more than 

 half a line broad and somewhat shorter ; they are always crenate or 



brevioribus muticis ; sepiilis ^ obtusis, 5 basi connatis subsequalibvis e basi angusta 

 (uninervi seu in latioribus obsolete trinervi) in laminam flabellatam tenuiter scario- 

 sam radiato-nervosam ambitu fimbriato-ineisam (fructif. patentissimam) maxime 

 cuneato-dilatatis. — Valley of the Rio Grande near El Paso, and on the San Pedro, 

 W. Texas, Wright, 582, pro parte. On the Gila Eiver, Schott. Lower California, 

 Xantus, supra, 99. — Nearly dioecious ; the female plant only collected, among the 

 flowers of which a male flower, with five narrowly-oblong and obtuse sepals, may 

 rarely be detected. Female sepals more connate at the base than in any of the fol- 

 lowing. 



4. A. ToRRETi {Sarratia Berlandieri, cum var. emarginata, Torr. 1. c, non Moq.) : 

 dioica ; foliis ovato-oblongis seu oblongo-lanceolatis ; glomerulis paniculato-spicatis 

 et axillaribus ; bracteis sepalisque masculis cuspidato-acuminatis ; sepalis 5 ima 

 basi coalitis subfequalibus obovato-spathulatis uninerviis, nervo simplici seu leviter 

 pinnatim ramoso, apice rotundato integerrimo retuso vel emarginato. — On the Mex- 

 ican border from the Rio Grande (Dr. Bigelow, Dr. Parry, &c.) to Lower Califor- 

 nia, Xantus, supra, no. 100. A variety with linear or oblong-linear leaves and vir- 

 gate spikes was collected near the sources of the Nebraska, by Mr. Henry Engel- 

 mann. — I have not seen Dr. Torrey's S. Berlandieri var. denticulata, with narrow 

 leaves and erose-denticulate sepals, gathered by Thurber at Santa Cruz, Sonora, 

 which seems to connect the present species with A. Jimbriata. 



5. A. SCARIOSA {Amarantus scariosus, Benth. 1. c t. 51, Sarratia scariosa, Moq. 

 1. c), from Western Tropical America, I have not seen. From the figure and de- 

 scription it is apparently most nearly related to the foregoing species, but is a much 

 coarser plant, with the " habit and inflorescence of Amarantus retrojlexus" aristate 

 bracts surpassing the flowers, deeply emarginate sepals to the female flowers and 

 obtuse ones to the male flowers, which is far from the case in A. Torreyi if the male 

 specimens in the Lower Californian collection really belong to that species. 



6. A. SQUARRULOSA {Scle7'opus squarrulosus, Anderss. ined., from the Galapagos) 

 is another species with the broadly ovate or rhomboid-obovate lamina of the female 

 sepals all abruptly contracted into narrow claws. 



The genus Sderopus was evidently founded upon an abnormal character, a thick- 

 ening of the peduncle and pedicels which occurs in various Amarantacece. Schra- 

 der's S. crassipes is an Euxolus. A part of no. 582 of Wright's Texano-New Mexi- 

 VOL. V. 22 



