36 Contributions from the Gray Herbarium 
pubescentia lateraliter subcompressa quadrangulata in angulis et 
apice ciliata, aristis 2 inaequalibus longioribus et 1-2 brevissimis. — 
Oaxaca: hills near Tula, 1675 m., 20 May 1906, Pringle 13863 
(tTyPE in Gray Herb.); Cerro San Antonio de la Cal, 1600 m., 
18 Aug. 1907, Conzatti 1952. — Distinguished from the two species 
previously known by the densely pubescent branches and more 
pubescent pales and involucre. Conzatti’s collection has been 
recorded by Greenman (Field Col. Mus. Bot. ii. 345 (1912)) as 
S. Inebmannii. 
Rhysolepis, genus nov. Verbesininarum. — Capitula heterogama 
radiata, floribus radii 1-seriatis neutris rare styliferis sed sterilibus, 
_ disci hermaphroditis fertilibus. Involucri 4—5-seriati gradati sub- 
campanulati phyllaria lanceolata acuta vel acuminata basi valde 
indurata et subcoriacea ecostata vel costato-vittata apice sub- 
abrupte herbaceo subappresso vel elongato foliaceo squarroso 
praedita plus minusve strigoso-pilosa. Receptaculum acute con- 
vexum valde alveolatum, paleis flores ¥ basi amplectentibus ma- 
turitate firmis induratis subscarioso-marginatis latis plus minusve 
gibbosis transverse corrugatis mucronulatis valde compressis ache- 
nia arcte foventibus et cum eisdem maturitate deciduis subglabris, 
interioribus angustioribus longioribus onustum. Corollae radii 
10-14 ligulatae patentes 3-denticulatae neutrae rare styliferae sed 
steriles aureae; eae disci numerosae tenuiter tubulosae 5-nerviae, 
tubo brevi basi paullum ampliato. Antherae elongatae basi sagit- 
tatae apice appendicibus lanceolato-ovatis obtusis praeditae. Styli 
flor. % rami elongati tenues recurvi supra medium hispido-pilost 
appendice brevi acuta hispidula praediti. Achenia nigra valde 
compressa paullulum obliqua substriata ciliolata et apice minute 
hispidula vel glabra. Pappi aristae 2 tenues ciliolatae, squamellas 
6-8 minutas fimbriato-laceratas liberas vel subliberas multiplo 
Superantes. — Suffrutices mexicani foliis alternis vel oppositis ob- 
longis vel ovato-lanceolatis serratis plus minusve strigosis venosis, 
capitulis majusculis vel mediocribus apicibus ramorum paucis 
cymoso-paniculatis aureis vel aurantiacis.— Species typica Viguier@ 
Palmeri Gray. if 
1. RuYsoueris morelensis (Greenm.), comb. nov. — Viguier@ 
morelensis Greenm.! Proc. Am. Acad. xl. 40 (1904). — Leaves 
piers —— oblong or ovate-oblong, acute to subacuminate, 
*~0-6 Cia. Jong, 0.8-2 cm. wide, subsessile or on petioles 1 mm 

