MALME. ARAJIA UND MORRENIA. 13 



Sect. Lagenia (Fournier) Malme. 



Lagenia Fournier in Flor, brasil. fasc. XCX (1885), p. 293. — Malme. 

 Die Asclepiadaceen des Regnell'schen Herbars (1900), p. 75. 



A. jiHi^nstifoIia (Hooker et Arnott) Decaisne. 



In DC. Prodronius. VITI (1844). p. 534 (excl. synonyme Sprengeliano) 

 {Arauja). 



Griseb.\ch:, Symbohr ad Floram argentinarn (1879), p. 233 {Arauja). 



Physianthuii anqustifolius Hooker et Arnott in Hooker's Journal of 

 Botany. I (18241 p. 292.' 



Lacfenia anquMifolin (Hooker et Arxott) Fournier in Flor, brasil. 

 fasc. XCX (188.31. p. 294. 



Icon: tab. nostr., fig. 1 (retinaculum etc.). 



Frutex volubilis, ramis primum puberulis, dein subgla- 

 l)ris, internodiis usque 10 cm. longis. Folia satis longepe- 

 tiolata, petiolo 1,5 — 2 cm. longo, linearia, hastata, v. sagit- 

 tato-hastata, auriculis augustis, apice rotundatis, 6 — 9 cm. 

 longa, ad basin 2,5^ — 3..^ mm., medio vix 0,.t cm. lata, basi 

 truncata v. leviter cordata, isinu apertissimo, apice acuta v. 

 acuminata, et supra et subtus glabra v. in nervo primario 

 subtus puberula. Inflorescentise pauciflorse (saepissime tantum 

 biflorae), pedunculo circiter l..-» cm. longo, pedicellis cum pe- 

 dunculo aequilongis, puberulis. Calycis lacinise ovato-lanceo- 

 latse, 15 — 18 mm. longse, circiter 5 mm. latse, acutae, subtus 

 (dorso) puberulse, supra glabrae; glandulse calycinse null«. 

 CoroUse tubus tubuloso-campanulatus, circiter 8 mm. longus, 

 extus glaber; limbi lobi patentissimi v. paullulum reflexi, 

 ovato-triangulares, circiter 15 mm. longi, 6 — 7 mm. lati, acuti, 

 et subtus et supra glabri. Corona circiter 6 mm. alta, squamis 

 erectis, crassis, circiter 3 mm. latis, apice obtusis (baud emargi- 

 natis), marginibus superne dentatis,extrorsumglabris,introrsum 

 brevibarbatis. Gynostegium sicut in A. meqapotamica sed multo 

 brevius, circiter 4 mm. altum, subsessile. Retinaculum eras- 

 sum, ab externa parte visum oblongum, l,i — 1,25 mm. Ion- 

 gum, 0,5 — 0,5 5 mm. latum, et basi et apice rotundatum, 

 latiuscule subhyalino-marginatum, apice appendice ferruginea 



^ Descriptio perbrevis hfec est: »Pkysianthus angustifolius (Hook. & 

 Akn.); foliis anguste lanceolato-hastatis acuminatis concoloribus lobis 

 transversalibus oblongis obtusissimis, corollis rotato-campanulatis, stigma- 

 tibus exsertis. Plentiful in the Missions of South Brazil. Tweedie (\. 

 218). — This is a true Physianthits. with very differently shaped leaves 

 from the preceding {Ph. albena). not a all white beneath, arid a differently 

 formed corolla.» 



Specimina Tweedieana non \idi. 



