70 PLANT FENDLERIANZ. 
and exserted (half an inch long, linear, plane when in flower), and the pappus of the ray 
is copious and similar to that of the disk!— The achenia of all the species, and espe- 
cially of the annual or biennial ones, are callous-margined, as in Calimeris proper, and 
the bristly hairs they bear are minutely capitate or glochidate. 
337. ‘T. Fenperi (sp. nov.): biennis? vel perennis, caulescens; strigoso-incana ; 
foliis linearibus elongatis ; squamis involucri lanceolato-oblongis acutiusculis late scariosis 
ciliatis; ligulis lineari-oblongis involucrum duplo superantibus; pappo fl. radii minuto 
squamellato, disci multisetoso corollam wquantibus achenio sublongioribus. — Grav- 
elly hill-sides, Santa Fé; May to August. (350.)— Probably perennial; the caudex 
branching, sending up stems of an inch or little more in height, which are simple or 
branching, and sparingly leafy up to the head. Leaves all linear, slightly dilated up- 
ward, less than a line broad at the summit, an inch long; the uppermost, as is usual in 
the genus, close to the head. Involucre one fourth of an inch in diameter. Rays blue 
or white, spreading. Bristles of the pappus subulate-setiform, scabrous. — This species 
most resembles T. Fremontii, Torr. §- Gray, but is more caulescent, with longer and nar- 
rower leaves, the pappus shorter and less denticulate ; that of the ray much reduced, as 
in T. strigosa. 
338, T. stricosa, Nutt. /.c. Gravelly hills, Santa Fé; May. (351.) — This has 
a slender, annual root, or rather biennial, as it flowers in the spring. ‘The earlier radical 
leaves are short, spatulate, and smoothish. Heads less than half an inch broad ; the pri- 
mary ones raised on a nearly naked scape or peduncle half an inch or so in length.* 
7339. T. cranpirtora, Nutt. 1. c. Low prairie, between Ocaté Creek and the Rio 
Colorado; August. (533.) 
340. T. eximia (sp. nov.) : hirsuto-pubescens ; caulibus e radice annua seu bienni 
crassa erectis subsimplicibus ; foliis spathulato-oblongis oblanceolatisve crassiusculis cili- 
atis glabratis, summis ad capitulum maximum approximatis eumque sepius brevioribus ; 
squamis involucri ovato-lanceolatis acuminatissimis late scariosis fimbriolato-ciliatis ; ligulis 
* I subjoin the characters of an allied species from a more southern region : — 
Townsenpia Mexicana (sp. nov.): strigoso-incana ; caulibus e radice annua seu bienni plurimis (2 -3- 
uncialibus) czspitosis gracilibus diffusis ramosis; foliis spathulato-linearibus majoribus nune 1—2-dentatis ; 
capitulis pedunculatis primariis longe pedunculatis ebracteatis ; involucri squamis oblongis obtusis biseriatis 
zequilongis, exterioribus anguste scarioso-marginatis ; ligulis linearibus patentibus involucrum plusduplo super- 
antibus; pappo fl. radii coroniformi-multisetoso achenio 4-plo breviore, setis tenerrimis glochidato-capitatis ; 
fi. disci e setis circ. 24 subulatis inequalibus minute barbellatis acheniam corollamque vix zquantibus. — 
“Saltillo; March. Called Pimentilla; used for tooth-wash. Flower white.” Dr. Gregg. — In the specimens, 
some of the rays seem to have been bluish or purplish underneath. Heads smaller than in T. strigosa. The 
delicate bristles of the ray pappus are minutely glochidate, like the hairs of the achenium, and some of them 
bear one or two lateral decurved teeth. 
