66 



CYCLOBALANUS. 



55. Quercus rassa, Miq. FL Ind. Bat. Suppl. 350. 



The youngest branches and the rachises of the flower-spikes minutely griseous- 



tomentose; all the other parts quite glabrous. Leaves small, rigidly coriaceous, from 



narrowly lanceolate to elliptic-lanceolate, rather bluntly acuminate; edges entire and 



slightly recurved when dry ; the base acuminate, rarely acute ; both surfaces quite 



smooth : the upper shining, the lower dull and pale ; nerves 8 to 14 pairs, anastomosing 



inside the margin, very indistinct ; length of blade 2 - 5 in. to 3*5 in., breadth '75 in. 



to 1*35 in. (in var. latifolia 1'6 in.) ; petiole *25 in. to *6 in. Spikes slender, axillary, 



or in sparse terminal panicles, the female lowermost. Male flowers sub-glomerulate or 



solitary ; the perianth with 6 blunt teeth ; stamens 12 ; rudimentary ovary large, globose, 



villous. Mature female spikes slightly longer than the leaves; the flowers sessile, solitary. 



Ripe cupules saucer-shaped, embracing only the base of the glans, *4 in. to # 5 in. in 



diameter and *J5 in. deep, gradually narrowed to a short, thick pedicel; lamellae 4 to 6, 



bold, entire. Glans when quite ripe sometimes globular, usually ovoid-conic ; the base 



always truncate, smooth, shining, *7 in. long and *6 in. in diameter. — DC. Prod. xvi. 



ii. 95 ; Miq. Ann. Mus. Lugd. Bat. i. 112 ; Hook. fil. FL Br. Ind. v. 613. 



Western Sumatra, — Teysmann, H. 0. Forbes (2560); Borneo, — Beceari (P. B. 1876); 

 Penang,— King's Collector (1689), Curtis (363); Perak,— Scortechini (3296); King's Collector 



(6957, 6983). 



A fine tree, attaining sometimes a height of 80 feet. 



Specimens from Sumatra differ from those from Penang and Perak in having the 



petioles rather longer and more slender. The species is a very well-marked one, readily 



distinguished by its narrow, very coriaceous leaves. Its nearest allies are Q. Miquehanat 

 Scheff., and Q. Wenzigiana, King, but both these species have larger fruit. 



Plate 60 A. — Q. Rassa. Miq. 1, branch with narrow leaves and unripe fruit (from a 



Penang specimen) ; 2, branch with broader leaves and nearly ripe fruit (from a Perak 

 specimen); 3, young inflorescence (from a Penang specimen) ; 4, ripe acorns, — all of natural size, 



56. Quercus cyrtorhyncha, Miq. Fl. Ind. Bat. Suppl. 350 



Young shoots puberulous or glabrous. Leaves thinly coriaceous, elliptic-oblong, acute, 

 entire; the base acute or sub-acute; upper surface glabrous, not shining; lower paler, 

 minutely puberulous or glabrous; nerves 10 to 14 pairs, slightly prominent below; length 

 of blade 5 to 8 in., breadth 2*5 to 3 in. ; petiole -25 in. Male spikes in large, spreading, 

 puberulous, terminal, panicles much longer than the leaves; female flowers on androgy- 

 nous, solitary, axillary spikes. Male flowers sub-glomerulate ; perianth 6-dentate ; stamens 

 12. Female flowers solitary, or 2 or 3 connate. Bipe cupules solitary, sessile, on stout 

 rachises longer than the leaves; when young campanulate, when adult saucer-shaped and 

 embracing only the lower part of the glans ; lamellae 6 or 7, minutely tomentose, with 

 entire sub-glabrous undulate edges, *7 in. to -9 in. in diameter, and '2 to *3 in. deep. 



x««x^«.« ~~ — 



Glans hemispheric with a truncate base and conical pointed apex, smooth, shining, '7 in. 

 to 8 in. in diameter and about *5 in. long. — Hook. fil. Fl. Br. Ind, v. 613. 



Western Sumatra,— Teysmam ; Borneo,— Beceari (Herb. Becc. P. B. 2168, 2880, 4031); 

 Perak, at elevations of 500 to 3,000 feet,-JWs Collector (7117, 10809, 10944). 



