4 CXXVIII. NYCTAGINE^. lMiraUli€<B. 



2. OxyDaphus, Vahl, Eimm. ii. 39. (Allionia, Loefl. It. 181, non Linn. Gen. Calyx- 

 hymenia, Ortcg. Dec: 5, t. 1. Calymenia, F^rs. Stjn. i. 36. Vitmania, Turra e:p Cav. 

 Ic. lii. Addend.)~lnYolncrum 1-3-florum, sequaliter v. inc-BCiualiter 5-fiduin v. -lobum, 

 post anthesin plua mimis auctum, nunc rotato-explanatum et reticulato-venosum, lobis 

 imbricatis v. plicato-valvatis. Perianthium campanulatum v. infundibulare, srepius 

 obliquum, tubo brevi supra ovarium constricto ; limbus plicatus, brevis, explanatus v. 

 suberectus, deciduus. Stamina 2-5, ssepius 3, insequilonga, inclusa v. exaerta, filamoutis 

 capillaribus circinnatim incurvis, ima basi in urceolum connatis ; anthers didymge. 

 Ovarium ovoideum v. subglobosum ; stylus fiUformis, stigmate capiteUato papiUis stipita- 

 tis onusto. Anthocarpium parvum, oblongum fusiforme v, obovoideum, teres v. costatum, 

 IfiBve rugosum v. tuberculatum, glabrum v. pilosum, humectatum mucnaginosum. Utri- 

 culus obovoideus. Seminis testa pericarpio adhterens ; embryo uncinatus, cotyledonibus 

 albumen parcum farinaceum involventibus, radicula elongata descendente extraria.— 

 Herbi^ erectai v. prostratte, dichotome ramosee, glanduloso-pilosaj v. fere glabra). Folia 

 opposita, sessilia v. petiolata. Involucra oblonga t. cyathiformia, cymosa v. paniculata 

 rarius axiUaria et soUtaria. Flores inter minores, albi rosei v. coccinei. Fructus 

 parvulua. 



Species ad 20, Americae occidcntalis tam borealis quam australis incolee, paucae America boreali 

 civitatibus orientalibus indigenae, una Himalaica.— CAo/s. m DC, Prodr. xiii. ii. 430. Griseh PI 

 Loreiitz. 38. A, Gray in Bot, Eniory Exjjed. 173. Ruiz et Pav. Fl. Per, et Chil t 75 (Calvx^ 

 hymeinal Cav, Ic. i. t. 19, iy. t, 379 et 437 (Mirahilis). Genus a MirahiU a)gro distinguendum 

 in sectionea 2 admodum naturales dividitur :— o o , 



1. Involucrum 1-3-floruin, campanulatum v. rotato-explanatum, post anthesin auctum, demam 

 membranaceum, reticulatum; anthocarpium costatum v. grosso tuberculatum v. rugosum glabrum 

 T pilosum, rarius l^ve. Includit 0. viscomm, VKh. {Bot. Mag. t. 434), speciem involucro post an- 

 thesin primum valvatim clause demum expknato, aliasquo involucro post anthesin simpliciter 

 expanso._ In a Cervantesii, Lag. {Sweet, Brit. Fl. Gard. ser. l,i.t. 84), planta hortis Europeis tantum 

 cogn.ta, involucrum post anthesin parum ampliatum. uti anthocarpium li^ve glabrum. Hue quoQuo 

 pertmet Quamodidion oxyhaphoid^s. A. Gray in Amer. Journ. Sc. ser. 2. xv. 320 ; inv^olucro 4-5-fido 

 Jobis insequahbus ei anthocarpio gloljoso apiculato l^yi. * 



2 Involucrum 1-florum post anthesin immutatum v. parum ampliatum ; anthocarpium ecostatum, 

 W, glabrun^ Includ.t 0. cordyoliu.. Kunze, 0. micrantkum Choi., 0. califhrl„ {MiraUlU. 

 A. Ur.), O. hmnalaimm Edgw., aliasque austro-americanas 



e.iyx|5y« est nomen viHo.nm a Persoonio in Caly,nema,n m.tatum, sed genus jam prins a 

 Vahho, dnoe Heritiero, Oxylaphum dictum, nomen hodie ab auctoribus omnibus acceptum. 



3. »yctagl„ia Chou. in Mtm. Soc. Phys. Ocn. xii. 167, t. 1, et in DC. Prod xiii ii 429 

 -Involucrum polyphyUum, multifloi-mn, bracteis lanceolatis ina^qualibus po.t anthesin 



nmaiDuiam, ate D-lobu« phcatus, deciduus. gtamina 5, filamentis capillar bus in^-equi- 

 longis pilosis longe ex«ertis una basi dUatato et infra basin ovarii connatis ; anS 

 didyni^ Ovarium ovoideuni ; stylu. capOlaris, exsertus, stigmate minuto ZuTto 

 papilhs stipitatis onusto. Anthocarpium crasse coriaceum, turbinatum, supra bal cot 

 stnctum, vertice late umbonatum, multi costatum, humectatum mu osum. UtricZs 

 obovoideus, paUidus apicu atus. Seminis testa pericarpio membrauaceo adh™ 

 embryo micinatus, cotyledonibus latissime obcordatis albumen farinaceum involTentibI' 

 radicula elongata descendente extraria. -Herba annua, prostrata, dichotom ramosa' 

 glanduloso-hirsuta. Foka opposita, petiolata, hastato-ovata, sinuaio-lobata. InvoZ^ 

 axiHaria et termmaba ongiuscule pedunculata. Flores pollicares, rosei, invoWfoUola 

 longe supcrantes, molliter pilosi. ^ ^"vuiucri ioi;ola 



Species 1, Texana. 



4. Aiuonla, Linn. (hn. n. 117, mn Loefl. (Wedelia, Unn. in Loefl It 180 ^- 

 mvolucrum 3-phyl urn, 3-florum, bracteis incequalibus v. sub»qualibus fru'tiferis ^oL 

 Perianthium membranaceum, infundibulare, tubo ba,i comprcso supra ovlum con 



