HARTWEGIAN^i;, 55 



culis subaugulato-dentatis, pinnjs deflexis, iufimis (duobus pari- 

 bus) basi seiisim auriculatis, auriculis transversim truncatis, soris 

 (in omnibus pinnis laciuiisque) uniserialibus ovalibus oblique 

 transversis, — Caudex repens, squamosus. Stipes 3-pollicaris, 

 gracilis, fusco-viridis, supra canaliculatus. Frons pedalis, tenera, 

 flaccida, laciniis 2-2|- uncias longis. Venae bis furcatse, nigri- 

 oantesj venula iufima superiore apice sorifera, reliquae ante mar- 

 ginem evanescentes, apicibus clavatis. [Hooker.) — In monte 

 Sumate, alt. 9500 pedibus. 



416. PoLYPODiuM (Pleopeltis, Presl) aureumjhmn,— Regla. 



417. AspL.EyiivM Jiircatum^ Linn. — Schlecht. et Cham, Lin- 

 nsea, 5. G12. — In umbrosis prope Regla. 



418. At,i.osoRVS ochraceus, Hook. MS., fi'ondibus dense cse- 

 spitosis lauceolatis pinnatis, pinnis suboppositis sessilibus mem- 

 branaccis deltoideo acuminatis profunde pinnatifidis ciliatis supra 

 glabriusculis subtus pulvere aureo-ocliraceo tectis, laciniis ob- 

 longis obtusis integerrimis, indusiis continuis angustis membra- 

 naceis crenatis, stipite brevi paleaceo rhacliique atro-fuscis. 

 (Hooker.) — In umbrosis humidis, Morelia. 



*' Of this curious plant the fructification is quite young, and 

 were it not for the very perfect and continued, though crenate, 

 indusia, I should have been disposed to refer it to Notochleena 

 or to Cheilanthes/'— (^^oAw.; 



419. QuERCus ohtitsata, Humb. et Bonpl. PI. ^q. 2. 26. 

 t. 7^^ var. foliis dimidio fere brevioribus. —Grande. 



420. Qv^ncvs petiolar is, sp. n., arborea^ foliis longe petio- 

 latis obovato v. ovali-oblongis obtusis integerrimis v. apice obtuse 

 subsinuatis basi rotundatis subcordatisve seepe inaequalibus, supra 

 glabriusculis vix demum nitidis, subtus tenuiter tomentoso- 



pubescentibus demum glabratis, fructibus se silibus solitariis v. 

 panels brevissime subspicatis — Arbor 40-pedalis, Folia fere Q. 

 pandui'atse, Humb. et Bonpl., v. paruni minora. Inflorescentia 

 diversa. Glandulae pubescentes. — Ad Barranca secca, Jaciila et 

 San Diego prope Bolafios. 



42L QuERCus dysophylla^ sp. n., arborea, petiolis brevibus 

 crassis, foliis oblongis plerumque ad apicem latioribus acutis in- 

 tegerrimis V. paucidentatis basi retusis crassis supra glabrius- 

 culis demum nitidis, subtus dense velutino-Ianatis, fructibus ses- 

 silibus subsoUtariis.— Arbor 40-pedalis. Folia 2-3|-pollicaria, 

 forma Q. tridentis, Humb. et Bonpl., a qua haec species differt 

 praecipue statura, et lana paginse inferioris foliorum. Quoad 

 folia convenit cum descr. Q. diversifoHse Nee, sed inflorescentia 

 discrepat. MaTtzanilla dicitur. — In montibus prope Iluasca. 



422. QuERCUs lanci/olia, Cham, et ScUecht. Linmra, 5. 78. 

 Zacualtipan. 



423. QuERCus Alamo, sp. n., petiolis longiuscnlis, foliis ova- 

 tis obovatis v. rarlus oblongis acutift superne aristato-dentatia 



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