PLANTE FENDLERIANE, } 93 
409. Rippevuia tacetina, Nutt.! in Trans. Amer. Phil. Soc. (n. ser.) 7. p. 871 ; 
. Torr. & Gray, Fl. 2. p. 362, & Suppl. Compos. ined.; Torr. in Emory’s Report, t. 5. 
Valley of Santa Fé Creek, at the foot of hills, near irrigating ditches; June, July: also 
between San Miguel and Santa Fé, in woodland; Oct. (461.)— These are exceed- 
ingly fine specimens of a rare and interesting plant, which, from its profuse corymbose 
heads with their large, bright-yellow, papery-persistent rays, would be very ornamental in 
cultivation. Col. Emory likewise gathered specimens in New Mexico; and Dr. Wis- 
claudentem apice uni- vel in radio bi-aristatum arcte coalitis, aristis barbellatis. — On high mountains around 
Cosiquiriachi, in the Sierra Madre west of Chihuahua, October, Dr. Wislizenus. — The stems of this little 
plant are only an inch and a half high; while the peduncles are nearly the same length. The purplish invo- 
lucres are half an inch long; the filiform tube of the (yellow) ligules nearly as long. Receptacle convex, 
alveolate. Tube of the pappus unequally 3—4-toothed at the apex, and produced into a stout rough-barbellate 
awn much longer than the disk-corolla, or in the ray often with two such awns. 
CHRYSACTINIA, Nov. Gen. inter Tagetearum et Porophyllearum ? 
Capitulum multiflorum, heterogamum ; fl. radii 9 — 12, ligulatis, feemineis, disci tubulosis hermaphroditis. 
Involucrum uniseriale disco brevius ; squamis 9 — 12, equalibus, distinctis, oblongo-linearibus, dorso carinatis, 
supra medium uniglandulosis. Receptaculum parvum, hemisphzricum, corneo-alveolatum. Ligule elongate, 
oblong. Corolle disci tubulose 5-dentate, dentibus ad margines incrassato-puberulis. Styli fl. hermaph. 
rami elongati, anguste lineares, planiusculi, cono brevi obtuso hispidulo terminati, et dorso infra apicem minu- 
tim hirtelli. Achenia elongata, linearia, erostria, multistriata, hispidula, involucro fructifero laxo cquilonga, 
callo basilari manifesto. Pappus pilosus simplex ; setis fere uniserialibus, denticulato-scabris, achenio longiori- 
bus. — Fruticulus Mexicanus, ramosissimus, glaber ; ramis strictis conferte foliosis ; ramulis floridis fastigiatis in 
pedunculis nudis parce setaceo-bracteatis monocephalis desinentibus ; foliis alternis imisve sepe oppositis, 
lineari-subulatis, mucrone apiculatis, crassis, supra ad costam sulcatis, utrinque serie glandularum grossarum 
rotundarum notatis ; floribus aureis, ligulis disco duplo longioribus conspicuis. (Chrysactinium § Andromachiz, 
Kunth = Liabium, Adans.) 
C. Mexicana. — Dry valley west of Saltillo, April; and on high grounds near Buena Vista, May, Dr. 
Gregg. Also at “* Ojo del Agua,” near the city of Mexico? Dr. Halstead (in herb. Torr.). Shrub one or 
two feet high, Heath-like ; the rigid stems roughened with the scars of fallen leaves. The leaves are light- 
green, crowded, apparently persistent for two years, from one fourth to two thirds of an inch in length, flat or | 
more or less involute, very conspicuously pustulate, especially anderneath, with a row of large and impressed 
brownish glands. Peduncles one or two inches long. Heads an inch broad, including the elongated spread- 
ing rays. Involucre only two or three lines long; the single gland on each scale oval or oblong. Pappus 
longer than the achenium, somewhat tawny or livid. — This plant apparently is by no means uncommon ; 
but I find it nowhere described. The characters of the style, in which the stigmatic lines extend through the 
whole length of the flattish branches quite into the short flattened-conical tip, as well as the principally alter- 
nate leaves, exclude the genus from the Eupectidew, as do the glands of the leaves from the division Liabez. 
It must therefore be referred to Tagetinez, where it combines the characters of the two divisions, having the 
rays and the style of the Tagetez, with nearly the pappus, involucre, and: foliage of Porophyllum. The 
name is given in allusion to the (golden-yellow) rays, which distinguish the plant from Porophyllum. 
