304 ODOROGRAPHIA. 



sessile, 3-nerved, lanceolate ; upper surface glabrous and glutinous ; 

 under surface covered with a dense white tomentuni. Its large 

 white flowers have a purple blotch at the base of the petals. Its 

 varieties are : — 



Var. a, albiflorus (D. C, Prod. 1., p. 266 ; Sweet, Cist, t. 84). 

 Petals wdiite, yellow at the base. 



yar. 7, macidatus (D. C, Prod. 1., p. 266 ; Sweet, Cist., t. 1., 

 C. ladaniferus ^, planifolius, Ait. Hort. Kew., iii., p. 305). 



A much more common plant in gardens than C. ladaniferus is 

 C. Cypriiis, which is often confounded with the former, but has 

 large and always solitary flowers and petiolate leaves, whilst the 

 flowers of C. ladaniferoits are born in clusters of three or four on 

 a common stalk, and the leaves are sessile. 



Cistus Ledon (Lam. Die, ii., p. 17 ; Duh. Arb., i., p. 168, t. 

 66). Leaves connate, oblong, lanceolate, nerved ; upper surface 

 smooth, shining ; under surface silky, villous ; flowers corymbosely 

 cymose ; peduncles and calyx clothed with silky villi. Native of 

 the South of France. Its petals are white with a yellow^ mark at 

 the base of each. The height of this shrub is 1 foot. 



Cistus Creticus, Lin. Spec.,i., 738 : Jacq., Icon, rar., i., t. 95 ; 

 Sweet, Cist., t. 63 ; Woodville, Med. Bot., t. 91 ; Smith, Flor. O-rffic, 

 495 ; Buxbaum, Plantarum, iii., p. 34, t. 64, f. i. ; Bentley and 

 Trimen, Med. Plant., t. 24 ; Pharm. Journ. [i], x., p. 349. 



This is the " Cretan Eock Eose," a native of rocky ground in 

 Macedonia, Thrace, Greece, and the islands of Crete, Ehodes, Sicily, 

 and Cyprus, in some of which it is very abundant. Boissier* 

 considers it a variety of the variable C. villosus, Lin., which is 

 spread over the Mediterranean district from Italy to Palestine, and 

 occurs also in Corsica and North Africa. 



It is a small bush with numerous spreading, opposite, terate 

 branches, with a rough grey birk, the younger twigs densely 

 covered with tufts of short white hairs. Leaves J to 1| inches 

 long, opposite, readily falling, sessile, obovate-spathulate, acute 

 or obtuse, tapering into a broad attenuated almost sheathing base 

 entire, bright green, glandular and tomentosely hairy on both sides, 

 wdth prominent reticulate veins beneath, thick, wavy, and 



^ Flor. Orient., i., p. 347. 



