Encephalartos.] cxxx. cycadace^ (Prain). 



847 



stipe slender, usually anpilar. Ovules sessile, ovoid, inverted. St-ccis 

 ellipsoid or oblong, usually slightly angular by eonipression. at length 

 protruding between the matiu'e scales.- Shriii)-; or small, rarely 

 medium trees with a sim))le or casually branched gh^bose. fusiform 

 or cylindric trunk clothed with coriaceous scales and tlie w(»odv 

 bases of the ])etioles. Jjcaves in terminal plumes or crowns, linear- 

 oblong, erect or the outer ascending, pinnate , ])innules diminishing 

 from the middle downwards, linear-lanceolate oi- lanceolate <»r ovate- 

 or oblong-lanceolate, longitudinally many-nerved, the nerves dose- 

 set, tip pungent, margin (in the troy)ical species) s))inulosc-t<K»thed, 

 very rarely casually entire, usually slightly revolutc. straight in bud : 

 lower often reduced to spines. 



Species about 17 ; seven within tlio tropics, the others in .South Africa. 



A sjieeics of Encephalartos, E. horridus, Lehm. (Pugill. vi. 14) [Zamia horrida^ 

 Jacq. (Fragm. 27, tt. 27, 28)] is said by A. de Candolle (Prodr. xvi. ii. r,:j2), to 

 bo a native of Troj)ical Africa. 'I'his (iocs not api)ear to be the case ; .Iac(juin 

 received his original plant from an unspecified locality 100 miles inland from 

 the south coast ; the only localities for which we have records of the colK'Ction 

 of uncultivated specimens are in Cape Colony. According to Sim (For. Fl. 

 Port. E. Africa, 100) one or more sjx>cies of Encephalartos occur in M'Choix-s and 

 elsewhere in Portuguese East Africa ; one, wild in the vicinity, is planted for 

 ornaTuent in the square at Quissiqui. These species are known in the language 

 of Z\ivalla as Impanga or Mwanga. No S])ecimens ha\e been seen ; the S|K'ci< s 

 in question are stated to occur only to the south of Jnhambnuc and thcnfon- 

 beyond the area here dealt with. 



lieaves thinly coriaceous, bright green ; pinnules 

 linear-lanceolate, slightly falcate, acutely acuminate, 

 base subequally long-cuneate, margin about 4- 

 toothed throughout on either edge ; stem very 

 short 



Ix^aves firmly coriaceous. 



Leaves glaucescent ; jwnnules linear - lanceolate, 

 slightly falcate, acute, base subequally short- 

 cuneate, lower edge entire or casually 'l-',\- 

 toothed, upi)er edge 1— 4-toothed near the base or 

 sometimes entire ; stem short or very short 



Tx>aves dark green above, rather paler beneath. 

 Pinnules subequally rounded or cimeat<> at the 

 base. 

 Pinnules ovate-lanceolate, distinctly falcat(\ 

 abruptly acute, base shortly rounded or 

 wide-cuneate, insertion broad, margin .'{-S- 

 toothed mainly in the basal lialf on either 

 edge ; stem short or very short 



Pinnules linear-lanceolate, slightly falcate, 

 acute, base long-cuneate, insertion narrow, 

 margin 1-5-toothed throughout on c-ither 

 edge, tip often .*i-s|)inese('nt ; st^-m tall, 

 cylindric 



Pinnules very oblique at the base, nuuli 

 narrowed on the lower edge. 

 Pinnules ovate-oblong, nt-arly straight, tip 

 broad, 2-4-spinescint, margin 2-4-toothed 



1. E. Rartcri. 



E. r 



'^. E. scptcnfn'onali 



\. /•;. Ilihhl,rnndlii. 



