ee ae 
PLANTEH FENDLERIANS. 
426. Acnitvea Mitteroxium, Linn. Moist meadows and foot of rhountains along 
Santa Fé Creek; June - Oct. (509.) Also a ey with agen flowers 
reous with a viscous pubescence and, especially the summit of the branches (which are leafless for Ris one 
or two inches), hirsute with glandular-capitate hairs. Heads nearly as large as those of T. procumbens’: but 
the ligules are considerably longer and ‘“red” according to the note of Dr. Wislizenus: in the specimen 
some of them are of. a deep pink-purple, others of a lighter hue. Disk-corolla (light-yellow), styles, achenia, 
and pappus nearly as in T. procumbens, except that the pappus is much shorter. The ligules exhibit two 
small interior lobelets, just as Sogalgina, Cass.@is characterized (a genus which otherwise does not seem to be 
very distinct) ; but as I notice a similar, although single, often —" small lobelet, i in Tridax procum- 
bens, I do not hesitate to refer our plant to that genus. 
* The following is a very striking, chiefly New-Mexican gerius of Anthemidew-Chrysanthemee : — 
x BAILEYA, Harv. § Gray, in Pl. Coult, ined. - 
Capitulum 16—500-florum, heterogamum; fl. radii 6-60, ligulatis, foemineis, 1 —-3-serialibus, marcescenti- 
persistentibus ; disci tubulosis hermaphroditis. Involucrum lanatissimum 1 -2-seriale, e squamis linearibus 
aqualibus appressis constans. Receptaculum planum, nudum. Ligulz ovales vel cuneate, 7-nervie, apice 
3-lobze, basi unguiculata sessiles (tubulo nullo), post anthesin papyraceo-membranacew, persistentes. Corolle 
disci cum ovario atomis resinosis conspersz ; tubo brevi; fauce infundibuliformi breviter 5-dentata ; dentibus 
ovatis glanduloso-barbulatis. Styli rami fl. hermaph. apice truncato barbatuli. Achenia lineari-oblonga, 
prismatica, vel subteretia, multistriata, glabra, basi apiceque truncata, omnino calva. — Herbe humiles, ut vide- 
tur biennes, undique albo-lanosissime ; foliis alternis pinnatifidis seu integris ; capitulis solitariis longe pedun- 
culatis speciosis ; floribus flavis post anthesin pallescentibus. — This genus is dedicated to Prof. J. W. Bailey, 
of the U. S. Military Academy, who is particularly distinguished for his researches among the minuter Alge 
and especially the Diatomacez (which he was the first to detect in a fossil state in this country), for his 
microscopical investigations concerning the crystals contained in the tissues of plants, and for the detection 
of vegetable structure in the ashes of anthracite. Through B. pauciradiata this genus is not obscurely 
allied to Riddellia, which belongs to the same Tegion, and which it imitates in the persistence of the di- 
lated rays. But in the lineal series it would appear to stand next to Monolopia. “There are three species — 
known, viz.: — 
* Oliganthe, villoso-lanate. 
1. B. ravcrrapiata (Harv. & Gray, l. c.): diffuse ramosissima ; foliis (imis ignotis) caulinis et rameali- 
bus linearibus integerrimis; pedunculis subcorymbosis ; involucri campanulati squamis 8-10 uniserialibus ; 
ligulis 5-6 ovalibus subtridentatis brevissime unguiculatis ; floribus disci 10-12; acheniis subclavatis elongatis 
valde striatis muricato-scabris. — California, Coulter. — Stems 6 or 8 inches long (the base unknown), villous, 
like the leaves, &c., with lax or spreading woolly hairs. Peduncles filiform, an inch long. Rays 3 lines 
‘long, reflexed, overlapping each other, as long as the narrowly campanulate involucre. 
a * Myrianthe, floccoso-lanosissime. 
2. B. prenrrapiata (Harv. § Gray, 1. c.): caule ramisque simplicibus strictis apice longe nudis; foliis 
inciso-pinnatifidis vel paucidentatis, summis parvis linearibus integerrimis ; involucri late campanulati squamis 
20-30; ligulis 25-40 obovato-dilatatis breviter unguiculatis involucro longioribus post anthesin deflexis et 
pluriseriatim imbricatis; fl. disci 40-50; acheniis subprismaticis utrinque truncatis levibus vel globulis resi- 
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