1928 



ARBORETUM AND FRUTICETUAI. 



PART III. 



are of a glaucous green, quite glabrous on both sides ; on rather long 

 footstalks, of an oblong oval form, with the indentations generally ter- 

 minating in a short bristly spine. The flowers are generally produced 

 two or three together at the extremity of the branches, on a peduncle 

 about 6 lines long. This oak is said to be a native of Portugal. 



Q. calyclna Poir. Diet. Encyc. Suppl., 2. p. 216., N. Du Ham. 7. p. 

 159., has oval-elliptic leaves, cottony and yellowish beneath. Nuts 

 ovate-oblong, in a long pubescent calyx. This oak, according to M. 

 Poiret, greatly resembles the ilex. It is of middling size, with nume- 

 rous unequal branches, covered, when young, with an ash-coloured 

 down. The leaves are oval, and slightly pointed at the apex ; about 

 1 in. long, entire, or slightly dentatcd with a few small teeth ; smooth 

 and shining above, except when quite young; cottony and rather 

 yellowish beneath, with downy petioles. The acorns are oval, very 

 long, and borne on short, thick, axillary peduncles. The nut is en- 



long, and borne on snort, thick, axillary peduncles. The nut is en- ^NK <?\ 

 veloped for three quarters of its length in a very deep pubescent calyx, $$$ |\ 

 often 8 or 9 lines long, covered with very closely set scales, and warty. *p3 U 



1818 



This tree is a native of France, having been found near Orange, in 



the department of Vaucluse, by M. De Bressieux, who sent specimens of it to M. Poiret. 



Q. expdnsa Poir. Diet. Encyc. SuppL, 2. p. 217., N. Du Ham., 7. p. 158., has the leave* oval, and 

 slightly dentated ; white and cottony beneath ; acorns oval on peduncles, with very large, pubescent, 

 bell-shaped calyxes. This oak differs very slightly from Q. calycina, and is a native of the same 

 habitat. It is about 12 ft. or 15 ft. high ; dividing into numerous branches, which are downy when 

 young. Its leaves closely resemble those of Q. calycina,' except in being rather shorter, and that 

 their downy pubescence beneath is white, instead of being yellowish. The acorns are shorter, and 

 thick ; and the calyx is nearly flat, and bell-shaped. Poiret mentions two forms of this species 

 differing slightly in the calyx. 



Q. rotundifblia Lam. Diet, ). p. 723., Willd. Sp. PL, 4. p. 434., N. Du Ham., 7. p. 158., Rees's 

 CycL, No. 37. ; the round-leaved Spanish Oak ; Chene a Feuilles rondes ; has persistent leaves, which 

 are obovate-oblong, with spinous teeth, heart-shaped at the base, smoothish above, and downy 

 beneath. This oak is very imperfectly known, as neither Lamarck nor Willdenow had seen either 

 its flowers or fruit. The acorns are said to be sweet and eatable. It is a native of Spain, whence it 

 was brought to France; and there is a small plant in the Jardin des Plantes. In the Nouveau Du 

 Hamel t itis said to be possibly a variety of/Mex; but Bosc supposes it to be either closely allied 

 to, or identical with, Q. gramuntia. There are numerous plants of it, he says (writing in 1806), in 

 the Paris gardens. 



Q. hitmilis Lam. Diet, 1. p. 719., Willd. Sp. PL, 4. p. 435., Ger. Emac., 1340., N. Du Ham., 7. 

 p. 161., Rees's CycL, No. 38.; Q. pexlem vix superans Bauh. Pin., 420.; .Rdbur 7.,sive Q. pumila, 

 Clus. Hist., 1. p. 19. ; the dwarf Portuguese Oak ; Chene pygmee, Fr. ; has the leaves obovate, with 

 spiny teeth at their apex, and rather heart-shaped at the base ; downy beneath. Calyx of the fruit 

 flattened. Nut oblong. This curious little shrub was found by Clusius, in barren sandy ground near 

 Lisbon, very abundant The whole plant is rarely more than 1 ft high when wild ; though 

 Lamarck says that, by cultivation, it may be made to attain the height of 3ft. or 4 ft. The leaves 

 strongly resemble those of the ilex. They are about lin. or IJin. long, on very short footstalks; 

 smooth and shining above, downy and hoary beneath ; the larger veins straight and parallel, and 

 the smaller ones reticulated. The acorns are sessile ; the nut is oblong, and more bitter than that 

 of the common British oak, with a very shallow, and rather flattened, calyx. This is still common 

 in sandy soil in PortugaL The Q. humilis of the London gardens, noticed in p. 1924., is a very 

 different plant from that here described. 



App. iii. African Oaks which have not yet been introduced. 



Q. obtecta Poir. Diet. Encyc. SuppL, 2. p. 218., N. Du Ham., 7. p. 163., has the leaves nearly oval, 

 slightly toothed, glabrous, shining. Acorns on peduncles, nearly solitary. Nut hidden in the cup. 

 The branches of this species are ash-coloured, glabrous, and extremely flexible. The leaves are 

 entire, or bordered with a few spiny teeth. The cup only opens a little at the extremity, and is 

 closely imbricated ; the upper scales being looser than the others, and somewhat recurved at the 

 point. 



App. iv. Oaks of Asia Minor and Persia not yet introduced. 



p. 253. t 14, 

 - Oil Ham., 

 No. 40. ; 

 Q. cariensis Willd. : Chene '& Galles/Fr. ; Farber Ei'che, Ger. ; 



and our figs. 1819. and 1820.; the first 



f. om Olivier, and the second from 



Du Hamel. Leaves ovate-oblong, 



very smooth on both sides, deeply 



taothed, somewhat sinuated,decidu- 



ous. Fruit sessile ; ripening the 



second year. Calyx tessellated. Nut 



elongated, nearly cylindrical, (Sm. 



and mild.) This oak, according to 

 TNfcX Olivier, seldom attains the height 



9 of 6 ft. ; and the stem is crooked, 



with the habit of a shrub, rather than that of a tree. The 

 leaves are about 1 in. or 1$ in. long, deciduous, bright green, 

 smooth on both sides, but paler beneath ; their serratures are 

 deep and broad, not acutely pointed. Fruit solitary, nearly ses- 

 sile. Cup slightly downy ; its scales not very distinct. Acorn two or three tunes longer than the 

 cup, smooth, nearly cylindrical. Olivier observes that this plant, besides producing the galls of 

 commerce, bears a number of different kinds of this excrescence, which are neglected as useless. 

 The tree, according to Bosc, has been long in the Jardin des Plantes at Paris, where it bears the 

 winters quite well in the open air, losing its leaves in the autumn. He has no doubt that it may 

 be propagated in abundance in the south of France ; but considers it doubtful whether the insect. 

 could be introduced and multiplied there with equal facility. According to the catalogue*, this 



Q. infectkria Oliv. Voy. dans 1'Emp. Ottom., 1. p. 25 

 15., Oliv. Trav., Eng. ed. 2., p. 42. t 14. and 15., N. Du 

 7. p. 162. t. 49. f. 1., Willd., No. 33., Rees's CycL, N< 



si ,,*.;/...,,.;., TJV//J . /^IA >. /'..u,.,, r . T7'.:u H v;/.it,i 



1820 



