AMAKYLUDEAE brown. (Agave.) 835 



290.*) Foliis lineari-lanccolalis, subtrigono-incrassatis, superne 

 planis vel conve.xis, valde carnosis, glaucis, spinoso-dcntatis ; 

 dentibus remotiusculis, totis corneis, cuspidatis, rectis vel unci- 

 natis, nigricanti-fuscis ; margine inter dentes nndo, hcrbaceo: spina 

 tei-minali maxima (pollicari), robusta, subulata, nigricanti-fusca. 

 Zacc. — Mexico. 2\. — Acaulis. Folia in planta quadricnni 10- 

 13-pollicaria, lineari-lanccolata, valde carnosa, subtrigono-iucras- 

 sata, subtus convexa, supra a basi ad medium usqne convcxnla, 

 inde apicem versus plerumque plana, glauca, spinoso-dcntala : 

 dentes remotiusculi, complanati, subdeltoidei, cuspidati, rccti 

 vel uncinati , toti cornei, nigricanti - fusci; margo intcr dentes 

 herbaceus, nudus, glaber, integerrimus ; spina terminalis valde 

 robusta, pollicaris, recta, glabra, nigricanti-fnsca, basi in margi- 

 ncm parnm decurrens. Zncc. Folia 6-7-pollicaria, polliccm lata. 

 Aculcns terminalis atro-pnrpureus ; aculei marginales atro-pnr- 

 purei, apicc croceo-rubicundi. Ad hanc specicm proxime acce- 

 dit A. flavcscens Ilorl. Monac. el S.-Dyck. Ilorl. 1834. p. 8., 

 qnae forte mera varictas scminalis. Diffcrt attamen hucusque 

 foliis subrecurvantibus ct aculeis minns coloratis. S.-Dyck. 



26. A. ituBESCENS Salm-Dyck. Horl. 1834. p. 306. lioem. 

 Am. "292. Foliis latc lineari-oblongis, acntis, rccurvato-patulis, 

 coriaceis, laxis, glauccscenti-purpurascentibus, ad margincs un- 

 dulatis, cartilagine tenni albo cinctis aculeisquc parvulis incur- 

 vulis apicc coloralis; tcrminali gracili, brnnnco. S.-Dyck. A. 

 flaccida Unrt. JMonac, lioem. Am. 292. — Mexico. 7\. — Acau- 

 lis?. Folia pedalia, l| poll. lata, juniora glanco-viridia ; seniora 

 purpurascentia. S.-Dyck. 



27. A. Ixtli KarwinsM in S.-Dyck. Horl. 1834. p. 304. 

 lioem. Am. 292. — In pcninsiila Jucatan. (Mcxico.) 7\. — Fo- 

 lia vix pcdalia, late lineari-oblonga, acnta, parnm nnmcrosa, 

 mcdio l^ poll. lata, inferne attenuata, crassa, scmicylindracca, 

 superne carnosula, longitudinaliter sulcato - cxcavata, crccto-re- 

 cnrvata, rigida, perviridia, subtus subglaucescentja, ad margincs 

 subrepando - aculeata ; aculeis rcmotulis, parvulis, apice corneis, 

 uucinatis, brunncis ; lcrminali subulato, valido, atro - purpureo. 

 S.-Dyck. Ejusdem tribus cum A. Karwinskii ct pugioniformi ? 

 C. Bouche. 



28. A. UNIVITTATA llaw. S. - Dyck. Ilorl. 1834. p. 308. 

 Zucc. in Ollo, Garlenz. 1838. no. 33. p. 259. Iioem. Am. 291. 

 Acaulis: foliis angustc lanccolatis, ciongatis, in aculcum validum 

 fuscum excuntibus, supra plano-concavis, apicem versus canali- 

 culatis, pcrviridibus cum linca longitudinali flavida, subtus con- 

 vexis, pallidioribus lincolisque saturatioribus notatis , margine 

 cornco fnsco superne intcgcrrimo infcrne aculcato cinctis; acu- 

 lcis magnitndine subacqualibus, rectis aut rctrorsum uncinatis. 

 S. Dyck. — Mexico. 2j. — Radices stoloniferae. Folia pcdalia 



l ) Ubique splialmate macroacantlia. 



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