BOTANY. 181 
verticillate hairs, but is nearly smooth later in the season. 'The staminodia are merely obtuse 
lobes between the filaments, or are wanting altogether. According to Mr. Schott the Mexicans 
use a decoction of this plant as tea. 
ALTERNANTHERA? SUFFRUTICOSA (п.вр.): cinereo-pubescens; caule 
89 
foliis inferioribus ovatis breviter petiolatis, superioribus verticillatis subternatis Бойдон 
sessilibus ; glomerulis paucifloris axillaribus sessilibus; sepalis oblongo-lanceolatis versus apicem 
pilosis bracteis duplo longioribus. Mountains near Frontera and between the Pecos and the 
Limpio; Wright, No. 592 and 1757. This species is truly suffruticose; the stems (which seem to 
grow erect,) arise from a thick irregular woody base. The A. lanuginosa is always annual and 
diffuse ; the leaves are larger, with along abruptly attenuated base, and the glomerules are fewer 
flowered, 
GOMPHRENA TUBERIFERA (n. sp.:) parce pilosa ; radice tuberosa ; caule erecto ramoso herbaceo ; 
foliis lanceolato-linearibus sessilibus integerrimis mucronulatis cinereis; pedunculis elongatis 
simplicibus ; capitulis globosis vel ovatis solitariis plerumque diphyllis ; floribus nitidulis albo- 
roseis; calyce bracteis lateralibus subzquali; sepalis acutissimis uninerviis villosissimis. Rocky 
banks of the San Pedro and other tributaries of the Rio Grande, Western Texas and in New 
Mexico. (Nos. 593 and 1750, Wright.) Root fusiform, 13-2 inches long and about one-third of 
an inch in diameter above, fleshy and farinaceous ; stem 1-2 feet high, sparingly branched. 
GOMPHRENA DECUMBENS, Jacq ; Mog. 1. c. p. 410. Lower Rio Grande, October ; Schott. This 
agrees very well with specimens from Havana, named by Moquin. 
GOMPHRENA GLOBOSA : var. ALBIFLORA, Mog. 1. c. On the Cibola and other tributaries of the 
Rio Grande; Bigelow, Schott. Santa Cruz and Babocomori, Sonora, September; Thurber. (No. 
1751, Wright.) 
GOMPHRENA SONORA (n. sp.:) caulibus e basi lignosa ortis pilosis; foliis lanceolatis sessilibus 
pilosis pallide viridibus ; capitulis terminalibus et lateralibus ovatis simplicibus vel 2-3 conflu- 
entibus 2-4-phyllis; floribus flavescenti-vel carneo-albidis ; bracteis lateralibus dorso sursum 
angusto-cristatis calyce paullo longioribus, sepalis acutissimis uninerviis villosissimis ; stylo 
ovario longitudine apice bifido. Mountains near Santa Cruz, Sonora, Mexico, September ; 
Wright, (No. 1749,) Thurber. Stems simple or sparingly branched, slender, 1—2 feet high, 
sparingly clothed with appressed hairs. Leaves 1-14 inch long, 3-5 lines wide, acute, the 
lower ones narrowed at the base. Axillary heads simple, sessile, about one third of an inch in 
diameter ; terminal heads mostly composed of two or three closely aggregated smaller heads. 
Lateral bracts about one-fifth longer than the calyx, with a narrow serrated crest above the 
middle. Stamineal tube entire to the summit; antheriferous lobes very minute; the lateral ones 
liguliform, much shorter than theanthers. Style about as long asthe ovary; stigmas cylindrical, 
acute, half as long as the style. This species occurs only in the collections of Wright and Thur- 
ber, and does not appear to have been hitherto described. It seems to be allied to G. agrestis, 
GoMPHRENA CXSPITOSA (n. sp.:) humilis; caulibus cespitosis ; caudice lignoso ; foliis obovatis 
obtusis subsericeo-villosis, radicalibus basi attenuatis, caulinis binis subsessilibus ; pedunculis 
brevibus simplicibus ; capitulis terminalibus solitariis ovatis ; floribus nitidis flavisconti- 6187; 
calyce bracteis ecristulatis paullo longiore; sepalis obtusiusculis uninerviis villosissimis. Grav- 
elly plains near the Organ mountains, New Mexico ; also at the Copper Mines and near Mimbres, 
April—May ; Bigelow, Wright, (No. 1572.) Cook’s Springs, New Mexico; Thurber, Rio de 
Santa Cruz, &c., Sonora ; Schott, Capt. Е. К. Smith .No. 1753, Wright, is a glabrescent state 
of this species. Stem or rather caudex-1-2 inches long, thick and somewhat ligneous, throwing 
f 
