dfii E. sPACii. — Revlsio Tiliaruni. 



lineari-vel oLlongo-spatluilata, integerrima, vel apice obsolète crenulala.Stamina 

 5o-6o. Ovarium incanum. Stylus demum 2-3 lineas longus- Nux magniludine 

 pisi, incana vel subvelutina, saepe obliqua , in singulis arboribus forma valde 

 vaiians. 



Habitat verosimiUter in America seplentrionali. Hospitatur in ambulaeris 

 Horti Parisiensis, ubi eodem tempore ac Tilla nigra floret. ( V. v. c. ) 



B. — Gemmœ pan^Œy pedolis ramulisque junior ibus tomentosœ 

 V. pubescentes. Foliorum pagina inferior pilis stellatis tomeu' 

 tosa V. pubescens. Filamenta staminodiis subduplo breviora. 



a] Foliorum omnium lamina petiolo triplo — quintupla lo i . i Stylus 

 glaber. 



TlUA TRUNCATA Nob. 



Tilia pubescens var.Vent. ! 



T. foliis ovatis, V. ovato-ellipticis, v. triatigiilari-ovatis, v. di- 

 luidiato-cordatis, profunde serra tis, brève acuminatis, basiple^ 

 rumque oblique truncatis, sublus incano-puberulis; cyiuis 

 dense midtifloris; petalis oblongis, obtiisis, apice obsolète cre- 

 uulatis; staminodiis obovato-spathulatis; stylo brevi, demum 

 vix exserto; nuce velutina, subglobosa : costis evanidis. 



Arbor parva, coma densissima, subrotunda, v. ovato-subrotunda. Ramuli anno- 

 tini rubelli v. virides. Foliorum lamina i2 172-4 poUices longa (in surculis 

 sterilibus 7 pollices usque longa )j 2-3 poUices lata, y.raro longitudine aequilata, 

 firma, supra laete viridis , subtus plus miuusve tomento velutino stellato incano 

 induta(folia juniora supra subtusque velutina), in axillis nervorum venarumque 

 fasciculis minutis pilorum rufescentium barbulata, basi plerumque obliquissiraa, 

 liinc 2-nervia, rotundata v. leviter cordata, illinc i-nervia alteque truncata ; nervi 

 subtus prorainentes;venn]ae tenue reticulatae; serraturae triangulares v. rotundatae, 

 mucronatae, saepissime maximae, inaequales distantesque ; petiolus 6-9 lineas longus ; 

 stipulas ovatae,v. ovato-lanceolatae , acuminatas; gemmae ovatae , obtusae. Bracteae 

 2 3 polliceslong2e,6-i2lineaslat3e,subsessiles, oblongae, obtusae, basi cuncatae vel 

 utrinque emarginatae, plerumque folio diraidiobreviores, n une pedicellis superata;, 

 nuucillispaulolongiores. Cyrase 20-5o-florae : pedicellicalycc subaequilongi, su- 

 perne incrassati, supra basin quasi articulati. Sepala 3 lineas longa, ovato-lanccolata, 

 acuta, in alabastris incana, demum latescentia. Petala 41ineas longa, superne i 1/2 



eam bta, albida,basi attenuata. Staminodia calycis longitudine, apice lineam 

 lata. Stamina 4o-5o. Stylus posi anthesin 2 1/2 lineas longus. Njix magniludine 

 pisi. 



