454 



et emargiiifttis, saepius toto raargine couvpxo iiec snpra lobos 

 inflexo diversa videtur. Pauca viditniis exompla sterilia et in- 

 ter se jam difFerentia. In hac qiioquc rarins aculeolum mar- 

 ginalem folii observamns. 



b) hastata , folia subcordata, obluse Iiastata elliptlca mu- 

 cronata, — Eodem loco nt praecedens lecta otfert folia an- 

 gnstiora, miuora (2 — 2^^ P« longa, inferne l*/4 — 2% p. 

 altins pollicem lata, saepe rainora), evidentius ad basin in 

 lobum obtusum utrinque dilatata, basali siuu valde piano, 

 supra lobos angustata sed apice obtusa et mncronala, mar- 

 gine saepius aculeolis iustructo, aculeis oranibus tenuioribus, 

 Fructus in hac globosi nigricautes. 



Stn. discolor n, sp. Glaberriraa; caulis subteres albido- 

 pruinosus, aculeis raris rectis; folia ovalia, utrinque breviter 

 acnminata, 5-uervia subtus (pruinoso-) glauca; pedunculus 

 petiolo pauUo lougior, pauciüoras, pedicelli dimidium pcduu- 

 culum haud aequantes. 



In dumetis pr. Jalapam Majo florentem raasculara plan- 

 tam leg. b. Schiede. „Folia supra laete viridia subtus 

 glauca." 



Species distinctissima sed non minus variabills. Caulis 

 rarius aculeis rectis 2 lin. longis, compressis, basi vix lin. 

 latis instructuS; adultus subteres, junior subangulatus et glau- 

 cescens, laevis. Petiolus 4 — 6 lin, iongns, ad medium us- 

 que vagiua cirrhifera marginc membranacea instrnctus basi- 

 qae in suroulis uovellis aculeis duobus munitus. Lamina 

 tcnnis membranacea, nunc ovalis, nuuc basi dilatata late 

 ovata, nunc in surculis fere elongato-triangularis, seraper 

 breviter acute acnminata, in basi, tam dilatata quam ovali, 

 breviter in pctiolum angustata subcuneata, nervi medii trcs 

 validi subtus prominentes laterales arcuatim adscendentes, 

 utrinque acccdenlc uno debili propc margiuem decurrente; 



