26 ARKIV FOR BOTANIK. BAND 16. w:o 15. 
O. Hasslerianum CHop. in Paraguay, Bolivia (ad Ber- 
mejo. FIEBRIG n. 2335), Argentinae prov. Formosa (KER- 
MES n. 265) et Misiones (Posadas. EKMAN), nec non in Pa- 
raná et Matto Grosso occurrit. In Rio Grande do Sul fru- 
stra quaesivi. 
O. capitatum Mart. & Zucc. (Nova gen. et spec. plant. 
I, p. 50), in Bahia, Minas Geraes, S3o Paulo et Matto Grosso 
numerosis locis lectum, etiam in Paraná occurrit (MALME, 
Asclep. paran., p. 9). Species est valde variabilis, ulterius 
examinanda. Forsan sit O. Hasslerianum tantum hujus va- 
rietas. Specimina nonnulla mattogrossensia transitum prae- 
bent. 
In Paraná adhue occurrit O. subcapitatum (MALME, Asclep. 
parag., p. 20), praeterea tantum in Paraguay lectum. 
0. stigmatosum Fourn. — Fournier in Flor. brasil XCV (1885, 
p. 281. 
»In pascuis prov. Rio Grande do Sul haud longe a fini- 
bus Missionum: ST.-HiLAIRE» (FOURNIER |. c.). 
Mihi non visum; cum O. subcapitato (aut O. uwruguayenst) 
comparandum. 
0. solanoides Hook. & ARN. — HookER & ÅRNOTT in HOOKER'S 
Journ. of Bot. I (1824), p. 289. — DECAISNE in DC. Prodr. VIII (1804), p. 
586. — FOURNIER in Flor. brasil. XCV (1885), p. 274. — O. tenuiflorum 
GRISEBACH, Symb. ad Flor. argent. (1879), p. 230. — Schizostemma longi- 
folium DECAISNE in Ann. Sc. nat. Botanique. 2:e ser. (1838), p. 344. 
Sec. Fournier in Rio Grande do Sul a SAınT-HILAIRE 
et A. ISABELLE collectum. 
Praeterea occurrit in Uruguay, nec non in Argentinae 
prov. Entrerios, Buenos Aires et Córdoba. 
0. confusum MALME. — MALME, Oxypet. spec. nov. (1994), p. 10. 
Cruz Alta (Matme I: 772 B, IT: 1107). 
Crescit in campis apricis; floret mens. Dec.—Febr. 
Praeterea tantum in Paraná (Rio Tibagy. Dus&n), et 
Misiones Argentin. (pr. Posadas. EKMAN) collectum. 
0. confusum Matme X OQ. incanum Fourn. — O. tridens MALME X 
O. confusum MALME, Oxypet. spec. nov. (1904), p. 13. 
Cruz Alta (juxta cum parentibus). 
O. coalitum Fourn. (in Flor. brasil. XCV, p. 282), spe- 
ciei praecedenti verosimiliter affine, in Santa Catharina (ULE 
n. 3841) occurrit. — O. Rojasianum MALME (in Bull. de F Herb. 
