102 J. Schuster. — Cycadaceae. 



valde acutangule erecta, glaucescenti-subpruinosa, nervis 8 — 15 striolato-prominulis, 

 margine subtus paulum involuto-crassatulo, 23 — 34 cm longa, 5 — 9 mm lata. Foliola 

 inferiora saepe perspicue abbreviata imaque interdum plane rudimentaria. Folia 

 juniora breviora, 8 cm longa, 4 cm lata, nervis 4 — 8, desuper se tegentia. Foliola 

 juvenilia 23 — 24-juga, linearia, 4 — 6 cm longa, 2 — 3 mm lata, nervis obsoletis 3—5, 

 apice denticulis 1 — 2 interdum persistentibus, nonnunquam denticulo singulo margine 

 catadromo prope apicem. Strobili g solitarii vel plures juveniles ellipsoidei, demum 

 subcylindrici, fusco-lanati, demum glabrati, 10 — 20 cm longi, 7 — 10 cm diametro, 

 pedunculo crasso brevi 4 cm longo. Microsporophylla obovato-lanceolata, applanata, 

 3 — 6 cm longa, 1,7 — 2,7 cm lata, areae fertiles bilobae, satis discretae, area sterilis 

 deltoidea, pruinosa, rugoso-striata costis tenuibus 1 — 2 verticalibus medio percursa, 

 in acumen angusto-erectum plurimum subulatum, costa mediana percursum 2,5 — 

 5,6 cm longum elongatum in microsporophyllis superioribus, acumine breviter trian- 

 gulari acutiusculo in microsporophyllis inferioribus. Strobilus§l (vel plures), ovoideus, 

 25— 45 cm longus, 10 — 25 cm diametro, pedunculo 13 — 16 cm longo, primum lanu- 

 ginoso, deinde glabrato. Macrosporophylla 4 — 10 cm longa, 4,5 — 9 cm lata, breviter 

 pedicellata, apice expansa, peltata, crassa, basi cordata. Peltae pars superior utroque 

 latere valde tumida, in macrosporophyllis sterilibus forma sandalii incrassata, prui- 

 nosa, partim pilis lanuginosis adpressis lutescentibus vestita, costa mediana plus 

 minus protuberante percursa, in acumen lanceolatum erectum, sursum spectans, 

 5 — 10 cm longum, in macrosporophyllis inferioribus multo brevius, glabratum, ligneum, 

 margine integerrimum vel suberoso-denticulatum productum. Semina oblongo-ovoidea, 

 apice rotundata vel subtrigona, rubra, glabra, 4 — 5 cm longa, 3 — 3,5 cm diametro. 

 Putamen ligneum flavido-badium, leviter 10 — 12-striatum, basi 3 — 7-scrobiculatum, 

 apice coronula 10-radiata. 



Südwest-Australien: Swan River (Oldfield 1866 in Herb. DG., Preiss 

 n. 1313); Swan River, bei der Geographenbucht, King Georges Sound (Preiss in Herb. 

 Lugd.-Bat.); vom äußersten Süden Australiens bis zum 20° ö. L. in der Nähe des 

 Flusses Irwin (Oldfield in Herb. Lugd.-Bat.); an der Stokes-Bucht (Maxwell in 

 Herb. Lugd.-Bat.); Swan River, Bayswater, lichter Wald, schwacher humöser Sand, 

 20 m (L. Diels 17. XL 1900, n. 1577); Swan River, südlich nahe dem Herdmans Lake, 

 freie Stellen des lichten Waldes auf humusarmem Sande, 20 m (L. Diels 24. XII. 1900, 

 n. 1956a); Swan River, Burswood, lichter Wald, schwachhumöser Sand, 15 m (L. Diels 

 22. XL 1900, n. 1901); Armadale (J. M. Griffiths VIIL 1900 in Herb. Victoria). - 

 Zentral-Australien: Macdonnell-Range (MacDonnell Stuart aus Bentham); 

 Krichauff-Range und James-Range (nach F. Mueller). — Bei Port Lincoln von der 

 Expedition Flinders angegeben, aber nicht wieder gefunden. — Kultiviert von Lauche 

 1876. - Fig. 13C-#; 14 T; 18 B; Taf. 2. 



Subspec. 1. Dyeri (F. Muell.) Schuster. — M. Dyeri*) F. Muell. in sched. — 

 Encephalartos Dyeri F. Muell. in Victoria Melb. Ghemist and Druggist (1885). — 

 Truncus procumbens. Petiolus elongatus, subtus trigonus, superne magis applanatus, 

 basi 25 mm latus, medio costa paulum elevata, margine utrinque bisulcatus. Folia 

 ampla, inexpansa non distincte torta. Foliola circiter 50 utrinque, lineari-lanceolata, 

 25 — 30 cm longa, 10 — 15 mm lata, nervis 11 — 18 subtus levissime prominulis vel non nisi 

 sectione transversali conspicuis, supra immersis, pungenti-acuminata, basi angustata 

 callosa rubra evidenter decurrentia, percoriacea, inferiora gradatim abbreviata, non 

 reducta in spinas. Strobilus <J ellipsoideo-cylindricus, 60 cm longus, pedunculo 3 cm 

 diametro. Microsporophylla obovato-cuneata, 23 — 40 mm longa, 15 — 17 mm lata, 

 inferiora obtusa et abbreviata, versus medium strobilum breviter acuminata, versus 

 verticem et in summitate in acumen pungens ascendens 15 — 16 mm longum attenuata. 



*) Nomen in honorem Sir William Turner Thiselton Dyer Kewensis (1843—1929); de 

 eius Cycadearum cognitione cf. Fl. Trop. Afr. VI. 2. (1917) Preface IX. 



