Encephalartos. 107 



a. Foliola anguste vel elliptico-lanceolata, sensim 

 acuminata, basi subito contracta, integra vel grosse 

 1 — 3-dentata. Microsporophylli pars sterilis in 



rostrum truncatum attenuata 3. E. longifolius. 



ß. Foliola late lanceolata, basi contracta, apice 

 mucronata, integra vel 1 — 6-dentata. Microsporo- 

 phylli pars sterilis subpyramidato-truncata, dense 

 tuberculato-rugosa, excrescentia lateralis squa- 

 mosa semen paulum obtegens. Macrosporangium 

 oblongum, coccineum, strato carnoso protracto. 



Putamen taeniis leviter prominulis 4. 2?. Altensteinii. 



y. Foliola anguste lanceolata, sensim attenuata, basi 

 subito contracta, integra vel 1 — 2-dentata, 

 margine fere piano. Microsporophylli pars sterilis 

 rhombeo-hamata vel apophysoidea. Macro- 

 sporophylla apophysi rhombea haud rugosa. 

 Macrosporangium oblongum, strato carnoso elon- 

 gato. Putamen tenuiter striatum. Excrescentia 

 macrosporophylli lateralis lobulata, semen fere 



obtegens 5. E. Lehmannii. 



d. Foliola lanceolata, integra vel in lobulos denti- 

 formes spinosos divisa, apice acuto. Microsporo- 

 phylli pars sterilis truncato-pyramidata, crista 

 transversali distincta. Macrosporophylla pelta 

 rugosa, crista transversa distincta. Macrosporan- 

 gium ovoideum, coccineum, apice prolongatum. 

 Putamen glabrum. Excrescentia macrosporo- 

 phylli lateralis hamata, semen ad dimidium ob- 

 tegens 6. E. horridus. 



s. Foliola elongata, longe lanceolata, basi contracta, 



sensim acuminata, integra vel 1 dente exiguo . I.E. elongatus. 

 C. Truncus humilis vel altus, cylindricus vel ellipsoideus. 

 Foliola nervis tenuiter striolata. Strobilus $ cylindricus 

 vel subcylindricus. Microsporophylla apice tetragono- 

 rhomboideo vel hexagono, interdum apophysata. Stro- 

 bilus $ ovoideo-cylindricus vel oblongo-ellipsoideus. 

 Macrosporophylla apice peltiformi-apophysoideo. Se- 

 mina ovoidea Sect. III. Aequatoriales. 



a. Truncus humilis vel cylindricus. Foliola nervis 

 tenuiter striata. Strobilus <$ anguste cylindricus. 

 Microsporophylla vertice tetragono-rhomboideo vel 

 hexagono. Strobilus $ ovoideo-cylindricus. Macro- 

 sporophylla apice peltiformi-apophysoideo. Semina 



ovoidea Subsect. 1. Austro-orien- 



a. Foliola lineari-lanceolata, dentata, maxima in in- tales. 



feriore tertia latitudine. Pelta microsporophylli 

 crista transversa crenulato - denticulata percursa, 

 sutura tenui vel costa invalida in areolam sub- 

 rhombeam terminans. Strobilus $ colore pruni 

 armeniaci. Apophysis macrosporophylli crista 

 transversali denticulata, saepe sutura verticali 

 tenui. Semina coccinea. Putamen costis valde 

 prominentibus 8. E. villosus. 



