﻿106 PLANTS FENDLERIANjE. 



f427. Artemisia dracunculoides, Pursh. Fl. 2. p. 742; Ton. 8f Gray, FL 2. p. 

 416. Bottom of the Mora River ; Aug. (511.) 



nosis pi. m. conspersis. — California, Coulter. Valley of the Rio Nazas, &c., in Chihuahua, Dr. Gregg; 

 flowering in April and May. — Plant from 8 to 16 inches high ; the radical leaves somewhat bipinnatifid, with 

 few segments ; the upright branches naked above for the length of 4 or 6 inches, and bearing solitary heads 

 (like Bahia leucophylla), which are nearly an inch in diameter with the rays outspread. These at maturity 

 are five lines long and over three in width, at length reflexed over the involucre, which they conceal, in several 

 series : although not really so numerous as in the next species, yet they are more strikingly imbricated, being 

 more dilated and arranged around a smaller disk. The minutely bearded apex of the branches of the style 

 exhibits in this species a more or less distinct central mucronation or slight cone : in the others they are abso- 

 lutely truncate. 



' 3. B. multiradiata (Harv. ($• Gray, I. c.) : caule subsimplici vel basi ramoso ramisque adscendentibus 

 superne longe nudis ; foliis 1 - 2-pinnatifidis summisve parvis integris ; involucro late hemisphasrico polyphvllo ; 

 ligulis circiter 50 oblanceolato-cuneatis sensim unguiculatis involucrum triplo superantibus. — Torr. in Emo- 

 ry^s Report, p. 144. t. 6. — California, Coulter. Interior of California near Hernandez' Spring, Fremont. 

 Along the Rio del Norte, New Mexico, and in the region between it and the Gila, Col. Emory. Sandy 

 plains near Albuquerque, Dr. Wislizenus. Near Chihuahua and valley of Rio Conchos, Dr. Gregg. — A 

 stouter, and, when branched, a more spreading plant than the last; the leaves more pinnatifid ; and the showy 

 golden-yellow heads about twice as large, being over an inch and a half in diameter, including the narrowly 

 oblong-cuneate rays, which are half an inch long. Achenia nearly as in the last, sprinkled with minute 

 resinous globules. 



Dr. Gregg and Dr. Wislizenus both collected a shrubby Composita, apparently of Anthemideae-Athana- 

 sieoe (but this is uncertain), which I am unable to refer to any known genus. I have therefore characterized 

 it, under its popular appellation, as given in Dr. Gregg's memoranda : — 



■ VAR1LLA, Nov. Gen. 



Capitulum discoideum, homogamum, multiflorum ; fl. hermaphroditis. Involucrum turbinatum, imbricatum, 

 pauciseriale, disco brevius ; squamis subulatis. Receptaculum conicum, paleis angustissime linearibus (superne 

 paulo dilatatis) onustum. Corollre fauce cylindrica e tubo brevi gracili subito dilatata, 5-dentata, dentibus ovatis 

 revolutis glabris. Antherse exsertoe ecaudatre. Styli rami compressiusculi, extus minutissime puberuli, cono 

 brevissimo obluso pubero terminati. Achenia conformia, oblonga, subteretia, multicostata, pappo brevi setu- 

 loso coronata ; setulis circ. 15 ex costis achenii ortis, simplicibus vel paucis subramosis. — SufFrutex glaber, 

 parum viscidulus, foliosissimus ; foliis oppositis summisve alternis, elongato-linearibus, uninerviis, integerrimis; 

 capitulis fastigiato-corymbosis ; floribus luteis. 



• V. Mexicana. — Between Pelayo and Cadena, in the State of Chihuahua, Dr. Wislizenus; May. Valley 

 east of Parras, Dr. Gregg ; April. — This is said to form a low shrub of two to three or five feet in height. 

 The leaves are two or three inches long, and one or two lines wide, rather thick. The heads are numerous 

 in rather dense terminal corymbs, a quarter of an inch long ; the short peduncles with subulate bracts which 

 pass into the scales of the involucre. These are rather rigid and appressed, yellowish, with slightly scarious 

 margins. The paleae are similar, but narrower and longer, equalling the flowers, minutely glandular. Corolla 

 with the tube glandular, otherwise glabrous. Anthers linear, yellow. Achenia black, much shorter than the 



