204 DICOTYL.— CALYCIFLORAE 



vel quatuor, oppositae, albo - membranaceae, apice ciliatae, 

 dein deciduae; perigonium simplex, basi stipitatum et supra 

 turgidum, quadrangulare, ventricosum, pulposum, lateralibus 

 tuberculato-lacunosis, tuberculis granulosis et villosis, in sic- 

 co reticulato-lacunosis et lignosis unde tubulosus, tubo vi- 

 ridi, apice constricto, quatripartito, fauce staminifera; stami- 

 na cum filamentis filiformibus, varie numerosis et cum an- 

 tlieris flavis, semicircularibus; ovarium fundo calycis adfixum, 

 biovulatum; styli elongati; stiymata penicellata; achenia qua- 

 drangulata, lignosa, reticulato - lacunosa, apice monoforata; 

 semina pyriformia, levia vel villosa. Herbae vel suffrutices; 

 folia impari-pinnata, foliolis serratis. 



Endl. Gen. FL pag. 1244. n. 6374.— DC. Prodr. 2. pa- 

 gina 594.--Guss. Syn. Fl. Sic. 2. pag. 601. — Meisn. Gen. 

 pag. 105. — Lin. Gen. 1069. 



I. P. polygamum. — Flores parvi, spicati; spica globosa, 

 longo scapo suffulta, solitaria, raro ramosa, obtusa, viridis 

 aut ex viridi rubeola, floribus inferioribus sterilibus supe- 

 rioribusque fertilibus; scapus elongatus, angulatus, subra- 

 mosus, glabriusculus, rubeolus; perigonium gamopetalum, 

 basi breve stipitatum et supra turgidum, quadrangulare, ven- 

 tricosum, pulposum, viride, lateralibus tuberculato-lacunosis, 

 tuberculis granulosis et villis albis obsitis, superne tubulo- 

 sum, apice constrictum , quadripartitum , segmentis cras- 

 siusculis, viridibus, ovatis, albo - membranaceis; stamina ad 

 faucem tubi inserta, plus minus numerosa, filamentis linea- 

 ribus, albis, contortis et antlieris flavis, semicircularibus; o- 

 varium fundo perigonii adfixum, inter villos albidos fuscum, 

 pubescens, biloculare, biovulatum; styli duo elongati, flavi, 

 e foro perigonii exerti; stigmata pedicellata; post anthesim 

 tubus antheriferus deciduus et achenium induratum, reticula- 

 to - foveolatum, ad axim remanet adfixum; carpella duo, ad 

 perigonium adnata; semina semipyriformia, lineata, basi et api- 

 ce pilosa et dependentia; caules caespitosi, herbacei, inermes, 

 angulati, adscendentes vel erecti, striati, virides, supra gla- 

 bri, ramoso-corymbosi, 1-2-pedales, elongati, subtus pilosiu- 

 sculi ac saepe rubeoli; folia superne glabra, inferne pilosiu- 

 scula, impari-pinnata, radicalia plus minus longe petiolata, 

 petiolis saepe rubentibus ; caulina sessilia, alterna, foliolis 



