26 ARKIV FÖR BOTANIK. BAND S. N:0 1. 



basi rotundatum, basi etiam emarginatum. Caudiculae sub- 

 horizontaJes v. paullulum descendentes, geniculatse, circiter 

 0,2 mm. long», subfiliformes, apice paullulum dilatatse in- 

 crassatseque. Pollinia obovoidea, circiter 0,35 mm. longa, 

 circiter 0,25 mm. crassa, utroque apice rotundata. Styli 

 rostrum brevissimum, crasse conicum, apice leviter bifidum. 

 Argentina: Cordoba, in silvis montanis pr. San Fran- 

 cisco (Febr. 1871. Lorentz.) et in viciniis urbis (Stuckert 

 .Niis 1189, 5755, 5818, 5970, 6287 etc. — KuRTZ N:o 8709.), 

 Entrerios, Concepcion del Uruguay (Mart. 1878. Lorentz 

 N:o 1243.), Diamantino (1885. A. E. Kullberg. — 1903. 

 Malme.). Buenos Aires, Sierras Pampeanas, Sauce Chico 

 (Lorentz N:o 290.). — Forte etiam in Gubernacion Formosa 

 (Kermes); specimina tamen obiter tantum examinata. 



Corolla albida v. dilute flavo-viridula, corona alba; folliculi ovoidei, 

 verrucosi, verrucis magnis, transversal ibus, Isevibus. 



Speciniina extra rempubl. Argentinarn lecta non vidi; matto-grossen- 

 sia, quae a Sp. Moore in Journal of botany, 1904, p. 104, comniemorata 

 svmt, verosimillime ad M. odoratani pertinent. Eadem enim occasione ac 

 A. Robert ad Porto Murtinho manifestissima hujus speciei speciniina 

 collegi. 



M. odorata (Hooker et Arnott) Lindley. 



Botanical regist. 1838, Miscall, notices, p. 71. 



Decaisne in DC. Prodromus. VIII (1844), p. 589. — Grisebach. Plantfe 

 Lorentzianse (1874), p. 157. — Fournier in Flor. brasil. fasc. XCV 

 (1885), p. 291. — MoRONG, An Enumeration of plants collected by Dr. 

 Th. Morong in Paraguay. 1888—1890 (1892), p. 164. — K. Schumann in 

 Engler & Prantl, Die natiirl. Pflanzenfam. IV: 2 (1895). p. 249. — Malme. 

 Die Asclepiadaceen des Regnell'schen Herbars (1900), p. 73. 



Cynanchum odoratum Hooker et Arnott in Hooker's Journal of 

 Botany. I (1834), p. 294.^ 



Icones: Fournier, 1. c, tab. 83; K. Schumann, 1. c, 

 fig. 72; tab. nostr., fig. 8 (retinaculum etc.). 



Suffrutex volubilis, ramis albido-puberulis, internodiis 

 usc^ue 12 cm. longis. Folia longepetiolata, petiolo 1,.5 — 3 cm., 

 rarius usque 4 cm. longo, triangulari-lanceolata et hastata, 

 vulgo 5 — 7 cm. (rarius tantum 3,5 cm.) longa, supra basin 



^ Descriptio perbrevis hsec est: f Cynanchum odora<w/n (Hook. & Arn.); 

 incanum, foliis hastato-trilobis, cymis subsessilibus. floribus (magnis) extus 

 incanis, corolla rotata, corona tubulosa columnam includento alte 5-lobata 

 intus hirsuta lobis lato-linearibus apice cmarginatis subcartilagineo-plicatis 

 dentibus minutis inter jectis. — «Old dykes about Buenos Aires. Flowers 

 green and remarkably fragrant, particularly in damp evenings.» Ttceedie. 

 — Leaves 2 — 3 inches, and petiole about an inch in length.» 



