TROPICAL AMERICAN COMPOSITAE. O- 



DeCandollean Herbarium, Geneva; BcrL, the Botanical Museum, 

 Dahlem, Berlin. The few other similar abbreviations which occur 

 are believed to be sufficiently clear without particular explanation. 



Ophryosporus (§ Euophryosporus) bipinnatifidus, spec, nov., 

 caulibus (vel ramis) curvato-adscendentibus vel erectis 2-3 mm. 

 crassis ut videtur pauUulo lignescentibus inferne delapsu foliorum 

 nudatis nodulosis sup?rne densissime foliosis; foliis alternis saepis- 

 sime in axillis proliferis deltoideo-ovatis profunde bipinnatifidis 

 utrinque dense griseo-pubescentibus 2-3 cm. longis et latis, lobis 

 anguste oblongis vel oblanceolatis vix acutiusculis integris vel saepe 

 lobatis; petiolo 5-12 mm. longo cuneatim alato; thyrso terminal! 

 solitario vel pluribus ovoideis densis ca. 3 cm. longis 2.5 cm. crassis; 

 capitulis ca. 4-floris sessilibus vel breviter pedicellatis ca. 5.5 mm. 

 longis; involucri squamis principibus plerisque 4 subaequalibus cum 

 1-2 multo minoribus calyculatis viridibus tenuibus sordide pubescen- 

 tibus; corollis albis ca. 3.2 mm. longis, tubo proprio glandulari- 

 puberulo; limbi dentibus 5 ovato-deltoideis patentibus; antheris 

 apice omnino exappendiculatis basi subsagittatis; styli ramis fili- 

 formibus subtruncatis apice pauUo incrassatis; achaeniis (valde 

 immaturis) hispidulis; pappi setis ca. 18 inaequalibus ca. 2 mm. longis 

 scabratis. — Peru: in very arid ground, Posco, between MoUendo 

 and Arequipa, 6 Aug. 1914, Dr. & Mrs. J. N. Rose, no. 18,805 (U. S., 

 phot, and fragm. Gr.). This beautifully distinct species adds a third 

 to the alternate-leaved section of the genus. In habit and cutting of 

 the leaves it recalls the Brazilian Lomatozona artemisiacfolia Bak. in 

 Mart. Fl. Bras. vi. pt. 2, 199, t. 54, f. II (1876), but of course differs 

 from it significantly in many technical characters, such as its ex- 

 appendiculate anthers, longer pappus, alternate leaves, etc. 



Ophryosporus (§ Ophrycchaeta) ovatus, spec, nov., petioHs 

 junioribus et inflorescentia puberulis exceptis glaberrimus; caule tereti 

 purpurascente folioso; foliis oppositis graciliter petiolatis deltoideo- 

 ovatis leviter crenato-serratis firmiusculis utrinque viridibus glaber- 

 rimis sublucidis a basi 3-ner\nis minute prominulenterque reticulatis 

 subacutis ca. 4 cm. longis 3 cm. latis; petiolo ca. 1 cm. longo; panicula 

 ovoidea terminali ca. 1 dm. alta et crassa multicapitulata, ramvilis 

 pedicellisque crispe puberulis; capitulis 4.5 mm. altis 3 mm. diametro 

 ca. 7-floris; involucri campanulati squamis ca. 6 tenuibus substrami- 

 neis ellipticis subaequalibus apice rotundatis eroso-ciliolatis dorso 

 glabris; corollis ca. 3.5 mm. longis a media parte modice ampliatis 

 5-dentatis extus ubique minutissime glanduloso-puberulis; antheris 



