Gyrostemonetz. ] CXXXII. PHYTOLACOACE^. 87 



17. Tersonia, ikTog;. in DC. Prod. xiii. il. 40 (quoad pi. $). — Flores dioici, racemosi, 



$ solitarii. Perianthium disciforme, carnosulum, obscure sinuato-dentatum. Fl. 



(J: Stamina 8-14, circa riidimentum ovarii glanduliforme 1-seriatim inserta, fila- 



mentis brevissimis ; antlier^e basifix^e, lineari-cuneat£e, ba»i einarginata3j rimis lateralibus 



dehiscentes. Fl. $ : Staminodia 0. Ovarium globosunij concentrice zonatum, e car- 

 pellis perplurimis arete connatis et columnse centrali apice discoideo-dilatatso adnatis 

 constans ; stigmata tot quot carpella, circa discum ad apicem columnse radiantia, intus 

 papillosa ; ovula in carpellia solitaria, angulo interiore inserta, ascendentia, campylotropa, 

 lAicropyle fungosa. Fructus globosus, lignosus, tuberculatus, apice umbilicatus, mul- 

 tilocularis, loculis indehiscentibus 1-spermis. Semina minuta, erecta, cylindracea, obtusa, 

 testa tenuiter crnstacca obscure transverse rugosa, arillo turbinate, endopleura membra- 

 nacea ; embryo uncinatus, albumen parcum carnosum (interdum deficiens) cingens, cotyle- 

 donibus angustis planis, radicula liilo proxima. — Frutex glaber, ramosus, decumbens, raiiiia 

 ascendentibus. Folia alterna, linearia, teretia, carnosula ; stipuloe tuberculiformes, 

 Flores parvi, 2-bracteolati, <^ racemis spicisve nudis laxifloris bracteati, $ sessiles. 

 Fructus diametro nucis avellan^e, perianthio parvulo stipatus. 



Species 1, Australise austro-occidentalis incola. Baith. Fl. Austral, v. 149. 



Genera Anomala. 



18. Stegrnosperma, Benth. Bot. Sulph. Voy. 17jH.'\2. — Flores hcrmapla-oditi, race- 

 mosi. Calyx 5-partitus, carnosus ; segmenta oblonga, obtusa, imbricata, fructifera 

 aucta, suberecta. Petala 5, membranacea, obovato-orbiciilata, calyce breviora, in alabastro 

 imbricata. Stamina 10, filamentis subulatis basi in annulum perigynum connatis, 5 

 calycis lobis altenia majora ; antlieras dorsifixai, late oblongai, basi 2-fida;, loculis introrsum 

 dehiscentibus. Ovarium sessile, globose- ovoideum, 1-loculare, loculo columna centrali 

 percurso: stigmata 3-5, brevia, subulata, recurva, intus papillosa, basi connata; ovula 

 tot quot stigmata, basilaria, crectaj ampliitropa. Capsula globosa, coriacea, 5- rarius3-4- 

 gona, angulis costatis, 1-locularis, usque ad basin S-valvis, 1-5-spcrma, valvis intus cariiiatis. 

 Semina erecta, arillo ample carnoso albo apice pervio inclusa, pbovoidea, subrostellata, 

 testa crasse coriacea atra nitida, endopleura membranacea ; embryo . . . .-—Frutex 

 ramosissimus, erectus, glaucus, ramidis teretibus. Folia alterna, breviter petiolata, 

 ovata obovata v. elliptica, obtusa, intcgcrrinia, coriacea v. carnosula ; stipula^ 0. Flores 

 majusculi, in racemes terminales pedunculatos dispositi, roseo-virescentes, pedicellis cras- 

 siusculis basi bracteatis et 2-bracteolati3. 



Species 1, CaliforniiiD australis, Americse centralis, et insularum Cubse et St. DomiDgi incola. Mo^. 

 in DC. Trod. xiii. ii. 35. A. Ekh, FL Cuh. t 44 ter, 



19. Agdestis, Mog. et Sesse, Fl. Mexic. ined. ex DC. Syst. Veg. i. 543; Prod. i. 103. — 

 Flores hermaplirediti, racemosi. Periantliium semisuperum, 4-5-partitum ; segmenta 

 membranacea, eblonga, obtusa, patentia, fructifera stellatim expansa, aucta, reticulatira 

 venosa. Stamina numerosa, disco perigyno ad basin segmentonun periantliii phiriseriatim 

 inserta, filamentis filiformibus ; antlierce doraifixpo, lineari-oblonga;, basi et apice 2-fidse, 

 loculis rimis lateralibus dehiscentibus. Ovarium semi-infermu, turbinatum, 3- rarius 4- 

 loculare ; stylus conico-subulatus stigmatibus 3 rarius 4 elongatis intus et apice papillesis ; 

 ovula in loculis solitaria, basilaria, semi- an at rep a. Fnictus inferus, turbinatus, perianthii 

 segmentis alatus, 1-locularis, 1-spermus, pericarpio coriacco semini adhairente. Semen 

 sessile, globosum, testa Crustacea fusca, arillo 0, endocarpio tenui ; embryo annularis, 

 albumen parcum farinaceum cingens, cotyledonibus late oblongis subfoliaceia obtusis 

 radicula brevi infera multo latioribus.— Herba gracillima, glaberrima, voiubilis, radice 

 napiformi. Folia alterna, petiolata, cordato -rotund ata, apiculata, membranacea, inte- 

 gerrima. Flores mcdiocres, in racemes paniculates longe pedunculatos axillares dispositi, 

 pedicellati, albi, rliachi pcdiccllisque filiformibus bracteatis et 2-bracteolatis. 



Species 1, Mexici borealis incola. Baill Hist. PL iv./y. 44. Gmeb. PJi. Trcf. Amer. 5. 



