Dicotyledons. 403 



Onopordon [Compoaitae]. Boiis- 

 .Mii,i.i;i:. I'JGll. 



Onosma [Boragineae]. Geisenueyjjkk. 



5 1 Ill's. 



Onuria [Cruciforae]. Gilo & Mcscii- 



i.tK. :>i07i). 



Operculina [Convolvulaceae]. House 

 51(>57. 



Ophlopogon [Haemodoraceae]. Lk- 



vKi 1.1,1:. ^ll^■!5'J. 



Ophiorrhiza [Rubiaceae]. Elmku. 

 506l}(;, 11. 



Opilia Olacineae]. Engler. 50620. 



Opuntia [Caeteae]. BuowN. 49793 ; 

 GuiKFiTiis. 51203; Guiitiths and 

 Hare. 51204 ; SCrke. 51243 ; Puupus. 

 53580 : Rose. 53829, 34 ; Tebeacci- 

 ANo. 54683. 



Oreocarya [Boragineae]. Nelson and 

 Ki;nni:i.y. 53071 rRvDBERO. 53921. 



Oreocharis [Gesneraceae]. Leveille. 

 52359. 



Orias [Lythrarieae]. Dode. 50427. 



Ormosia [ Leguminosae ]. Dunn. 

 50527. 



Orobancbaceae. Rouy. 53880. 



V. Aeginetia, Lathraea, 



5Iy/oirlii/a, DTobanche, Thalesia. 



Orobanche [Orobancbaceae]. Drdce. 

 50495 ; Leveille. 52359 ; Volkart. 

 54904; Williams. 55203. 



Ortbaea [Vacciniaceae]. Horold. 

 51590. 



Orumbella n. gen. [UmbelJiferae]. 

 50214. Coulter and Rose. 50214. 



Ossaea [Melastomaceae]. Glaziou. 

 51101. 



Ostodes [Eupborbiaceae]. Merrill. 

 52809. 



Oatrya[Cupuliferae]. Schmidt. 54091. 



Osyris [Santalaceae]. Polqer. 53441. 



Otopappus [Compositae]. Brande- 

 gee. 49085 ; Robinson. 53771. 



Oubaaguia [Scytopetalaceae]. Engler. 

 50639. 



Ourisia [Scrophulariaeae]. Gard. 

 Chron. 45 1909 (390) ; Diels. 50380. 



Ozalis [Geraniaceae]. Bartlett. 

 49300; Candolle. 49911; Cuodal et 

 Hassle'r. 50039 ; Kanngiesseb. 51854. 

 (M-6632) 



Oxera [V«rbnnacoao]. 



5400 

 BoLS. 49577. 



Oxycoccus 



49:'.2.3. 



[Vaccitiiaceae]. Bean. 

 Bakeb. 



Oxygonum [Polygonaceae] 

 49255. 



Oxymltra[Anonaceae]. Elmer. 50606. 



Oxypetalum [Asclepiadeae]. Malme. 

 52057. 



Ozjrtheca [Polygonaceae]. MoGbeoob. 

 52005. 



Oxytropis [Leguminosae]. Beauverd. 

 49351 ; Danuuy. 50311; Freyn. .50893; 

 Paulsen-. 53299. 



Pachycereus e 

 Britton and Rose. 



gen. 

 49768. 



[Caeteae]. 



Pachylobus [Burseraceae]. Engler. 

 500 1;^,; Guii.LAUMiN. 51254,56. 



Pachylophus [Onagrarieae]. 

 1)7;;; Nelson. 53073. 



Heller. 



PachyrhizuB [Leguminosae] 

 54381. 



Paliavana [G esneraceae] 

 49:)0O. 



Palicourea 



et alii. 50133 



Smith. 



Paeonia [Ranunculaceae]. Lynch. 



Beauverd. 



[Rubiaceae]. Cogniaux 



Panax [Araliaceae]. Moller. 53003. 



Pjindiaka [Amarantaceae]. Baker & 

 Ci-AitKE. 49250 ; Lugard & Brown. 

 52.")08. 



Pangium [Bixineae]. Jong. 51822. 



Papaver [Papaveraceae]. J. Board 

 Agric. London 16 1909 (26); Feddk. 

 50731, 33, 34; Le Genabe. 52297; 

 Pearson. 53322. 



Papaveraceae v. Argemone, Bocconia, 

 Corydalis, Dicranostigma, Eschscboltzia, 

 Glaucium, Ilylomecon, Hypecoum, Mac- 

 leaya, Meconopsis, Papaver, Platyste- 

 mon, Roemeria, Sanguinaria, Stylo- 

 pbonim. 



Paradolicbandra n. gen. 

 acuac]. Hassi.er. 50041. 



Pajietaria [Urticaceae]. 

 50201. 



Parinarium [Rosaceae]. 

 50615 ; Merrill. 52809. 



Pamassia [Saxifrageae]. 

 50871. 



[Bignoni- 



COBTESI. 



Elmeb. 



Fkako^. 

 2 L 



