Systematik und Pflanzengeographie. 
25 
apice lato rotundato subscariosis. Receptaculum planum nudum. Corollae radii 
lato-cuneatae, trilobae, sensim in tubum brevem angustatae; disci tubuloso- 
infundibuliformes, breviter obtuseque 5-dentatae, extus crebre glanduloso-pubentes, 
tubo proprio brevi crassiore. Antherae basi obtusae. Stylus fl. disci apice 
brevissime bifidus, ramishaud stigmatiferis, apice depresso-dilatato semi-peltato: 
ovarium inanum gracile. Achenium fl. radii turgidum , obovatum, ecostatum, 
sursumpilis tenuissimis villosum, areola epigynaparva parum depressa: pappus 
nullus. — P. floribunda, Apache Pass, S. Arizona, Lemmon. Die Pflanze 
ist verwandt mit Actinella unter den Helenioideae, obgleich ihre wesentlichen 
Charaktere ganz die der Helianthoideae-Millericae sind. 
Dugesia nov. gen. Comp.-Melamp odiear um, p. 21b: Capitula hetero- 
gama, radiata; fl. radii 8—12 foemineis, disci plurimis hermaphrodito-sterilibus. 
Involucrum latum , duplex; exterius foliaceum, ebracteis 6—8 obovatis oblongisve 
patentibus; interius e bracteis numerosioribus oblongis membranaceis erectis. 
Receptaculum planum; paleis angusto-linearibus scariosis planis apice dilatato 
subherbaceis flores steriles subtendentibus, exterioribus ab acheniis et bracteis 
involucri subtendentibus omnino liberum. Corollae radii ligula plana cuneato- 
oblonga apice 2 — 3-fida e tubo brevi; disci fere Silphii, Stylus sterilis Silphii , 
vel summo apice bifida: ovarium inane. Achenia oborata, crassa, obcompresso- 
turgida, dorso subconvexo uninervia, ventre subangulata, costa prominente 
superne in dentem crasso-subulatum rigidum porrectum desinente, marginibus 
dentato-alatis (nempe ala sinuato-incisa nunc pluripartita, lobis summis carti- 
lagineis auriculiformibus forte ad pappum referentibus), basi nec bractea sua 
involucri nec paleis internis adnata. — D. Mexicana, p. 216 (Lindheimera 
Mexicana Gray olim), San Luis Potosi, Parry et Palmer, Schaffner. 
Parthenium confertum, p. 216, plains of Coahuila, Mexico, near Parras, 
Gr egg, Palmer n. 648; Kudbeckia montana, p. 217, Rocky Mts. of Colo¬ 
rado, E. Hall, Elk Mts., Colorado, Brand egee; R. Mohrii, margin of 
ditches and ponds near the Dead Lakes, not far from Jola, W. Florida, Ch. 
Mohr; Gymnolomia triloba, on peaks of the Chirricahui Mts., south of 
Rucker's Valley, Lemmon; Synedrella vialis ist für Calyptrocarpus vialis 
Less. (Oligogyne Tampicana DC., Blainvillea Tampicana Hemsl.) zu setzen; 
Viguiera lanata, p. 218 (Bahiopsis lanata Kellogg), Cerros Island, Lower 
California, leg. Veatch, Street, Beiding; Leptosyne (Coreocarpus) 
Arizonica, near Fort Lowell, along streams, Lemmon, Santa Catalina Mts., 
Pringle (Leptosyne DC., Pugiopappus Gray und Coreocarpus nebst Acoma 
Benth. müssen in eine Gattung vereinigt werden, welche im westlichen Nord¬ 
amerika das Seitenstück zur Coreopsis des östlichen Nordamerika bildet); 
Madia Yosemitana Parry in litt., p. 219, California, in damp moss at the foot 
of the Upper Yosemite Fall, Parry; Lagophylla glandulosa, California, in 
the Sierra Nevada from Auburn to near the Yosemite, Lemmon, Mrs. 
Bidwell, G. R. Vasey; Actinella Vaseyi, New Mexico, in the Organ 
Mts., G. R. Vasey; Artemisia Parishii, p. 220, Newhall, Los Angeles Co., 
and in Cajon Pass, California, S. B. et W. F. Parish; Senecio Lemmoni, 
near Camp Lowell und Santa Catalina Mts., Lemmon; Cnicus Rothrockii 
(C. Arizonicus var. Rothr. in Wheel. Rep. VI. 179), Central and Southern 
Arizona, Rothrock, Lemmon. 
Ilecast ocleis nov. gen. Comp.-M uti si acear um, p. 220: Capitula uni- 
flora: flos hermaphroditus. Involucrum cylindraceum , e bracteispauciseriatis imbri- 
catis angusto-lanceolatis subherbaceis rigidis cuspidatis. Receptaculum parvum 
nudum. Corolla fere coriacea, tubulosa, angusta, regularis , limbo haud 
ampliato in lacinias 5 aequales lineares mox recurvo-patentes fisso. Antherae 
lineares , subcoriaceae, basi in caudas sat longas nudas productae. Stylus 
integer } apice stigmatico truncato ]>arum emarginato. Achenium immaturum, 
cyli ndraceum, glabrum. Pappus coroniformis , laciniato-dentatus, corneus. — 
brutex ramosus, glaber; ramis rigidis foliosis; foliis alternis et in axillis 
fasciculatis coriaceis, caulinis lineari-lanceolatis plerumque cuspidato-mucronatis 
margine hinc hule spinuliferis sessilibus, floralibus ampliatis lato-ovatis ilici- 
formibus venulosis margine spinulis gracilibus armatis capitula sessilia pl. m. 
glomerata fulcrantibus paululum superantibus; corolla albida. — H. Shockleyi, 
p. 221, very arid district, at Candelana, Esmeralda C., Nevada, W. S. Shockley. 
