NYCTAGINEAE. 561 



2012. PISONIA Plum. 

 (Plum. Icon. t. 227. fig. 1.) 



1. P. FLORIBUNDA Hook. fil. Transact. of the Linn. soc. XX. 193. — Arborea: ramis 

 nudis teretibus ; foliis sparsis petiolatis ovato-oblongis obtusis integerrimis, utrinque 

 sed subtus praecipue pubescenti-velutinis ; floribus in corymbis compositis lateralibus 

 terminalibusve dispositis ; pedunculis elongatis , pedicellis brevibus ; perianthio cam- 

 panulato ; staminibus exsertis. l^ — Crescit in James Island. 



2. *P. TOMENTOSA Lam. 



var. U. pumila Hool(. fil. 1. c. 194. — Acaulis annua: foliis stellatim patentlbus 

 obovato-lanceolatis sinuato-dentatis, */2 — % unc. longis parce pilosis ; pedun- 

 culo ahbreviato-hirsuto ; spica brevi 6 — 8-flora ; capsulis latis dlspermls. © 

 — Crescit in James Island. 



Ordo CLXXIIL AMARANTACEAE R. Br. 



(Endl. Gcner. plant. p. 300. — Meisn. Gener. plant. vascul. I. 318. II. 230.) 



Tribus I. GOMPHRENEAE Endl. l c. p. 301. 



1954. IRESINE Willd. 

 (Willd. Spec. pl. IV. 763. — Mart. Nov. Act. XIII. 305.) 



1. l. GOSSYPINA N. ab Es. Linnaea XIX. 709. f — Fruticosa: caule teretl foliisque 

 ovatis, subtus albo-tomentosis ; panicula terminali subdecomposita pyramidali , lana 

 perianthio longiori densissima. \) — Crescit in Mexico. 



2.1. CASSINIAEFORMIS S. Schauer , Linnaea XIX. 709. — Ramis teretibus, to- 

 mento denso incanis ; fuliis petiolatis rhombeo-ovatis, utriuque acuminatis, supra hir- 

 tello-pubescentibus, subtus lanugiuoso-tomentosis et incanis; panicula aropla decom- 

 posita , ramis brachiatis , ramulis alternis ; spicis subsessUibus ovatis ; perianthil 

 phj^llis enervibus acutiusculis. l) ? — Crescit in Mexico. 



3. I. EDMONSTONEI Hook. fil. in Transact. of the Linn. soc. XX. 190. — Erccta, vir- 

 gatim ramosa glaberrima : foliis ovato-lanceolatis; paniculae compositae ramis alternis 

 patentibus ; pedunculis alternis solitariis binisve angulatis divaricatis , apice Qorife- 

 ris gracilibus, basi obscure bracteatis ; spiculis pauci-(6 — 8 }floris late ovatis, rha- 

 chi villosa; bracteola exteriore late ovata, interioribus minoribus; floribus herma- 

 phroditis lana immersis. 2|. ? — Crescit in Charles Island. 



4. 1. INTERRUPTA Bnth. in Belch. Voy. of the Sulpliur p. 156. — Foliis lanceolatis 

 acutis cauleque glabris ; paniculae ramis divaricatis ; spicis secus ramulos ultimos 

 subsessilibus parvis ovato-globosis. H? — Rami elongati graciles laeves. Folia bi— « 

 tripollicaria, vix semipollicem lata, superiora multo minora , basi rotundato-cuneata 

 petiolata. Panicula ampla his terve ramosa, glabra vel rarissLme puberuia. Spiculae 

 1 lin. vel vix 1% lin. longae sessiles vel breviter pedicellatae; floribus 6 — 12 parvis 

 arcte sessilibus. Bracteae tres , perigonio duplo breviores. Perigonium vix semi- 

 lineam lougum, pilis paucls longis laxissimis sublanatum. Filamenta quinque libera, 

 additis inter filamenta squamulis quinque brevibus latis hyalinis. Ovarii rudimentum 

 elloetum. Flores foeminei ignoti. — Crescit ad Tepic, Acapulco in MeJiico. 



1956. AI.TERNANTMEIIA Forsk. 

 (Forsk. FI. Aeg. 28. — Mart. Nov. gen. & sp. II. 52. t. 153.) 

 I. A. SUBSCAPOSA Hook. fil. in Transact. of the Linn. soc. XX. 189. — Radice crassa 

 fusiformi; caule nullo; foliis radicalibus lineari-lanceolatLs acutis integris , basi sub- 

 villosis ; ramis floriferis omuibus radicalibus gracilibus erectis dichotome ramosis, 



71 



