47s Excerpta Botanica. 



lamina 1-3 pollices longa, nunc longitudine sequilata, nunc angustior, 

 basiS- V. T-nenis, membranacea, subtiis in axillis nervorum lanafloc- 

 cosa rufescente vel lutescente barbata ; serraturse triangulares vel 

 rotundatse, plus minusve approximatse, vel distantes, inajquales vel 

 subsequales, mucrone brevi, cartilagineo, albido, nonnunquam apice 

 calloso mucronatEe ; petiolus gracilis, 6-24 lineas longus (foHorum 

 infimorum semper lamina brevior). Pedunculi pleru.mque folio paiUo 

 longiores (semper petiolo longiores) ; bractea lanceolata, v. lanceo- 

 lato-oblonga, apice rotundata v. attenuata. Acres superans pedicellisve 

 superata, nunc usque ad basin pedunculi decurrentes, vel ab ea plus 

 minusve remota ; pedicelli umbellati, v. cor3^mbosi, v. trichotomy cy- 

 mosi, pedunculi parte libera nunc longiores, nunc breviores. Sepala 

 vix ultra 2 lineas longa, oblongo- v. ovato-lanceolata, obtusiuscula, 

 subtiis glabra v. pulverulenta, supra sericeo-tomentosa. Petala 2^-3 

 lineas longa, lanceolate- v. oblongo-spathulata, obtusa, albida, apice 

 obsolete crenulata. Stamina 25-30, libera (an semper ?), petalis de- 

 mum dimidio longiora. Ovarium sericeo-tomentosum. Stylus glaber, 

 post anthesin staminibus vix superatus. Nux pisi minoris volumine, 

 tenuis, fragilis, tomento rufescente, floccoso, demum deciduo induta, 

 immatura turbinata v. pyriformis. 



Habitat in Europa fere tota, prsesertim borealiori, necnon in mon- 

 tibus Uralensibus ac Caucasicis, inque Siberia Australiori (v. v. c. et 

 sp.). 



b. IS'ux coriacea, subcequilateralia : costis prominulis. 



TILIA INTERMEDIA, DeC— T. foliis e basi subsequaliter v. ob- 

 lique cordata v. dimidiato-cordata, v. truncata, v. rotundata subro- 

 tundis, V. ovato-suljrotuudis, v. ovatis, cuspidato-acuminatis, in- 

 sequaliter serratis, supra Isete viridibus, subtus pallidioribus (vix 

 glaucis) : summorum petiolo lamina dimidio — duplo breviore. Pe- 

 dunculis 2-7-lloris ; nuce subturbinata vel oblique obovata, umbo- 

 nata,velutina. — Tilia intermedia, DeC. Prodr. — T. enropaa. Smith, 

 Eng. Bot. t. 610. Svensk, Bot. t. 40. Hor. Dan. t. 553.— T. vul- 

 garis, Hayn. Arzn. iii. tab. 47. Guimp. etHajm. Deutsch. Holz. 

 t. 107. — T. Tecksiana, C. Bauh. 



Arbor 40-60 pedalis ultraque. Cortex vetustior nigricans, rimo- 

 sus. Rami divergentes, suberecti, comam pyramidalem vel conico- 

 pyramidalem efFormantes. Ramuli annotini olivaceivel lutescentes. 

 Gemmae ovatae, subcompressse, laevigatse, oHvacese vel purpuras- 

 centes. Foliorum lamina 2-3^ pollices longa, 18-45 lineas lata (fo- 

 lia surculorum sterilium usque ad 4^ poUices lata totidemque longa), 

 membranacea, basi 5- v. 7-nervis, supra lae\'igata, subtiis in venarum 

 axillis lana floccosa dilute fulva v. lutea, v. castanea barbata ; serra- 

 turas triangulares, v. rotimdatse, plus minusve insequales, mucrone 

 brevi cartilagineo ssepe apice sphacelato acuminatse ; petiolus 6-20 

 lineas longus, gracilis. Pedunculi foliis fere sequilongi, vel paulo 

 breviores, plerumque 4-7-flori; pedicelli parte libera pedunculi sub- 

 sequilongi, vel paulo breviores, umbellati, vel corymbosi, vel dicho- 

 tome sive trichotome cymosi ; bractea lanceolata, v. lanceolato-ob- 

 longa, subobtusa, plerumque usque ad basin pedunculi decurrens. 

 Sepala ovato- v. oblongo-lanceolata, obtusiuscula, supra glabra, sub- 



