” 
62 PLANTEZ FENDLERIANZE. 
+297. Liarris squarrosa, Willd. Near Fort Leavenworth, &c.; August. (332.) 
+298. L. squarrosa, 6. inrerMeEDIA, Torr. §& Gray, Fl. 2. p.68. Prairies on the 
“ Arkansas below Turkey Creek; September. (331.) 
1. PECTIS § HETEROPECTIS. Pappus coroniformis et 1-4-aristatus, vel saltem fl. disci muticus ; 
aristis serrulato-scabris. 
‘By rastiaiata (sp. nov.) : erecta, glabra ; caule fastigiato-ramosissimo ; foliis marginibus revolutis lineari- 
filiformibus mucronatis grosse glandulosis basi setis utrinque 2-3 instructis ; corymbis terminalibus confertis ; 
pedicellis setaceo-bracteatis capitula subzquantibus; involucri 20-flori squamis 8 linearibus subcomplicatis 
apice obtusis uniglandulosis ; ligulis 6 -8 oblongis conspicuis ; corollis disci subregularibus ; acheniis parce 
hispidulis ; pappo coroniformi et in fl. radii discique exteriorum 1 - 2-aristatis, aristis corolla dimidio breviori- 
bus basi vix dilatatis. — Dry hills near Austin, Texas, Mr. Charles Wright ; flowering*in September. — A 
pretty annual, from 4 to 6 inches high ; the fastigiate branches terminated by dense corymbs; the flowers bright 
golden-yellow ; rays two lines long. Leaves an inch or more in length, half a line wide. The plant bears some 
resemblance to P. tenella, DC., and probably also to P. uniaristata, which must likewise belong to this section. 
P. riuires (Harv. §& Gray in Pl. Coult. ined.): subglabra, erecta; caule ramosissimo diffuso ; foliis 
angusto-linearibus obtusis muticis marginibus revolutis scabris pauciglandulosis basi parce piliferis; pedunculis 
capillaribus ebracteatis folia superantibus; involucri 10-flori squamis 5 eglandulosis basi complicato-carinatis 
apice dilatato-spathulatis obtusis; ligulis 5 obovatis ; corollis disci manifeste bilabiatis; acheniis parce puberu- 
lis; pappo radii biaristato, disci coroniformi rariusve uniaristato, aristis e basi subulata setiformibus sursum 
scabris divergentibus. — California, Coulter (no. 329). — Plant of the size and aspect of P. linifolia. 
P.. Courter: (Harv. § Gray, I. ¢.): puberula, diffuse ramosa; foliis angusto-linearibus obtusis crebre et 
grosse glandulosis marginibus revolutis basi setis brevibus dentibusve piliferis auctis ; pedunculis folia subsuper- 
antibus capitulum 20-florum adzquantibus ebracteatis ; squamis involucri 5 oblongis carinatis ; corollis disci 
valde bilabiatis ; acheniis puberulis; pappo radii 3—4-, disci 2 - 3-aristato; aristis rigidis retrorsum serrulato- 
hispidis. — California, Coulter (no. 330).— Leaves half an inch long. Heads solitary, half an inch long. 
P. muntiseta, Benth., which also has retrorsely barbed awns, equally belongs to this section, which is 
remarkable for the tendency to have a more reduced pappus in the disk than in the ray. 
2. PECTIS § PECTOTHRIX. Pappus e setis aristisve gracilibus basi vix dilatatis 6 - 20 (raro pauciori- 
bus) serrulato-scabris vel barbellatis constans, conformis, aut fl. radii brevis auriculseformis. 
P. raprosa (Harv. § Gray, l. c.): glabra; caule ramoso diffuso; foliis angusto-linearibus gracilibus 
sparsim grosse-glandulosis basi utrinque 3—4-setiferis; pedunculis 1 —3-bracteatis folia subsuperantibus ; capi- 
tulis solitariis ¢orymbosisve ; involucri circ. 20-flori squamis angusto-linearibus complicatis glandulis parce 
punctatis obtusis; ligulis 6-8; corollis disci bilabiatis; acheniis uncinato-pubescentibus ; pappo fi. radii 
dimidiato-auriculeformi, disci e setis barbellatis 15 - 20 valde inequzelongis. — California, Coulter (no. 331). 
— Bristles of the disk-pappus slender, all alike, except in size ; the longest searcely equalling the corolla, the 
shortest one fourth of that length, all denticulate-barbellate, the barbell spreading or upturned: pappus of the 
ray composed of three more or less united, very short and obtuse scales. 
P. pirrusa, Hook. §- Arn. (P. arenaria, Benth.), and P. sroneata, Kunth, belong to this section. 
P. renetia, DC. (of which copious specimens were gathered by Dr. Gregg on the Rio Grande east of 
Mier) connects this group with Pectis proper; the bristles of the pappus being somewhat enlarged toward the 
base. Their number varies from three to five in the ray, and from three to six in the disk. 
