13 



CYCLOBALAtfUS. 



(Obs. Phyt. iii. 91) the true fruit of Q. Bancana as I have here described and figured it. 

 Unfortunately, however, some specimens of the present plant (Q. Rajah) were issued 



by Dr. Scheffer under the name Q. Bancana. I have seen ripe acorns of Q. Rajah 

 nowhere except in the herbarium of the late Dr. Hance (now in the British Museum). 



Plate 61 B. — Q. Rajah, Hance. 5, twig with young acorns; 6, unusually broad leaf; 



7, ripe glans; 8, cupule ; 9, young acorns, — all of natural 



59. QuERcrs Ewyckii, Korth. in Verh. Nat. Gesch. Rot. 212. t. 46. 

 Younff shoots, under surfaces of the leaves, and the inflorescence minutely sub 



epidote-puberulous. Leaves thinly coriaceous, lanceolate or oblong-lanceolate (ovate- 



ic in var. latifolia), acute or acuminate; upper surface of adult leaves shining and 



irlabrous except the midrib and 11 to 14 pairs of nerves which are minutely pubescent; 

 under surface silvery grey, adpressed-pubescent ; nerves prominent (and sometimes 

 slightly coloured) ; length of blade 5 to 7 in., breadth 1-75 to 2*25 in. ; petioles *3 in. 

 to *5 in. Flower -spikes from 4 to 6 in. long, mostly males, forming few-branched, rather 

 contracted, terminal panicles. Male flowers sub-glomerulate or solitary; the perianth 

 6-lobed; stamens 12; rudimentary ovary globular, villose. Female spikes one or two at 

 the base of the male panicle. Bipe cupules solitary, sessile, or on very short, thick, 



ped 



shaped, embracing only the lower third of the glans, minutely 



tomentose ; "6 in. to 1 in. in diameter and -15 in. to -2 in. deep ; lamellae about 7 or 

 8, narrow but distinct, entire or finely denticulate. Glans depressed, hemispheric or ovoid- 

 conic, apiculate, the base truncate; smooth and shining when adult. «6 to *8 in long 

 and -5 to -9 in. in diameter.— Blume in Mus. Lugd. Bat i. 300 ; DO. Prod. xvi. ii. 94 ; 

 Wenzig in Jahrb. Bot. Gart Bert. iv. 230 ; Hook. fit. Fl Br. Ind. v. 614. 



Sumatra,— Korthals; Perak, — King's Collector (7846). 



A considerable tree. The Perak specimens have slightly smaller acorns than those 

 from Sumatra, but otherwise the plants are the same. In Dr. Hance's herbarium (now 

 in the British Museum) a specimen collected by Mr. Curtis in Penang (No. 360) is named 



. Ewyckii. That plant has cupules with bold sausage-shaped lamellae. It is identical 

 with Maingay's Malacca specimen No. 1527, and is the species which I have named 



. Wenzigiana. True Q. Ewyckii is not well represented in any collection which I have 



lted, exceot those at Leiden and Calcutta. In the former there is a good deal of 



nder a manuscript name of Korthals which I cannot decipher. This species much 

 rubles Q. Lamponga, Miq., in leaf; but this has distinctly zonate cupules. On th 



ther hand, there are forms of Q. Lamponga in which the cupular scales are arranged in 



verticels and their bodies are almost completely united, only the very tips being f 

 Such forms come so near Cyclobalanus as to be hardly distinguishable 



Var. latifolia. 



Leaves ovate-elliptic, shortly and bluntly caudate-acuminate; lamellae of cupule 



denticulate; glans ovoid-conic. 



Perak, — King's Collector, No. 8532. 



This variety is evidently not common: it does not occur in Scortechini's collection. 



In fruit this approaches Q. daphnoidea. 



Plate 62A. — Q. Ewyckii, Korth. 1, leaf -twig; 2, spike of ripe fruit (from a Perak 

 specimen)-, of natural size. B. — Var. latifolia. 3, leaf-twig; 4, spike of nearly ripe fruit: 

 5, ripe glans ; 6, cupule, — all of natural size. 



