BOTANY. 85 
了 BERLANDIERA TEXANA, DC. Prodr. 5, p. 516; Deless. Ic. Sel. 4, t. 26. Coleto creek and the 
Rio Grande, Texas; Schott. 
BERLANDIERA LYRATA, Benth. Pl. Hartw. р. 17. Cobre, Mimbres, Mule creek, etc, New 
Mexico; Bigelow, Wright. Оп the Rio Grande and in the Sierra Madre, Sonora ; Schott, etc. 
ENGELMANNIA PINNATIFIDA, Torr. Ё Gray.l.c. Rock creek, Texas; Bigelow. On the Rio 
Grande, at Cleto creek; Schott. A marked variety of this, with single and larger heads, 
smaller pappus, and сий lobed leaves, was gathered by Thurber аё Ojo Caliente, Chihuahua. 
MELAMPODIUM CINEREUM, DC.; Gray, Pl. Wright, 1, р. 108, & 2, р. 85, & var. RAMOSISSIMUM 
(M. ramosissimum, DC.) Common in Texas and New Mexico. Very various forms occur in 
Berlandier's collection, under Nos. 833, 2242, from San Fernando, Coahuila ; 1492, 1881, from 
Вехаг; and 607, 2017, from Laredo and the Nueces. 
MELAMPODIUM HISPIDUM, Н. В. K.; Gray, Pl. Wright, 2, p. 85. Between the San Pedro and 
Santa Cruz, Sonora; Wright. Accords well with Mexican specimens collected by Schaffner. 
MELAMPODIUM LONGICORNU, (Gray, Pl. Thurber, р. 321): annuum, hispidulum, diffuse ramo- 
sum; foliis lanceolatis subintegerrimis; pedunculis alaribus filiformibus (3-2 unc. longis) 
monocephalis ; involucri squamis iuternis fructiferis 7—10 nervoso-striatis dorso vix muricatis 
apice in cornu longissimum extus sericeo-puberulum circinnatum productis; ligulis aureis 
oblongis.—Near Santa Cruz, Sonora; Thurber. Santa Magdalena, Sonora; Schott. The pub- 
lished character of this curious species is here somewhat amended, since Mr. Schott’s specimens 
(which are in good flower, while those of Mr. Thurber were in fruit) show conspicuous rays much 
longer than the disk ; but they have the same long and silky horns. The leaves are not always 
perfectly entire, nor all obtuse. 
DICRANOCARPUS, Nov. Gen. 
Capitulum pauciflorum ; floribus exterioribus 3-4 fcemineis subradiatis, ligula minima 2-3- 
loba, stylo breviore; disci totidem sterilibus, tubo corollae cylindrico, limbo cyathiformi 5-fido. 
Involucrum 1-2-bracteolatum (bracteolis linearibus parvis), 3-4-phyllum: squamæ oblong:e, 
obtuse, membranaces, erectæ, subplane, demum decidua, Receptaculum planum: pales 
lineares parve inter flores. Antheræ oblonge, ecaudate. Stylus fl. masc. inclusus, indivisus, 
apice clavato-pubescens ; fl. Кет. bifidus, ramis inappendiculatis. Ovaria disci inania, epap- 
posa. Achenia (radii) difformis, nempe 1-2 linearia vel subulata, subteretia, levia, persis- 
tentia, aristis 2 validis levissimis divergentibus seu recurvis persistentibus cornuta; cetera 
breviora et crassiora, intus вгере tuberculato-rugosa, aristis brevioribus vel obsoletis.—Herba 
annua, gracilis, fere glabra, Heterospermi facie, microcephala ; foliis oppositis 3-5-sectis, sum- 
misve integris, filiformibus ; capitulis solitariis pedunculatis ; floribus flavis. 
Dicranocarrus PARVIFLORUS, Gray, Pl. Thurber, p. 322, adn. Heterospermum dicranocar- 
pum, Gray, Pl. Wright, 1, p. 109. Plains below San Carlos, Tamaulipas; Parry. Only 
mature achenia of this plant were known, from Wright's first collection, persisting on the 
receptacle from which everything else had fallen. The flowers, etc., furnished by Dr. Parry, 
enable us to complete the characters ; these show that the plant is by no means a Heterosper- 
mum, (although allied to that genus,) but a new generic type which, according to the classifi- 
cation adopted, must be referred to the rather incongruous subtribe Melampodinee. The 
ing heads are only a line and a half in length, and the scarcely explanate ray-corollas are 
Әр. 
