CRUCIFERAE • CISTACEAE i53 



ALYSSVM— continued 



A. spinosiim. i. April-May. E. Spiny, spines slender. Ls. narrow, oblong, 

 oblanc, 2, entire, silvery-downy on both sides. Fls. white, fragrant, in 

 terminal heads f across. South Europe. (Fig. 115 F.) 



IBERIS. Ls. green, hairless or nearly so, blunt-ended, seed-pod deeply notched 

 at apex. 



1. gibraltarica. Gibraltar Candytuft. i|. April-May. E. Ls. oblanc, 2, 



toothed near apex or entire. Fls. lilac pink. South Spain, Morocco. 

 /. ^empemrew^. Evergreen Candytuft. i\. April-June. E. Ls. linear, 2. 

 Fls. white. South Europe, West Asia. (Fig. 52 b.) 



VELLA. Ls. alternate, entire, bristly. Fls. yellow, in erect terminal racemes. 

 Seed-pod \, egg-shaped. 



* V. Pseudocytisiis. Cress Rocket. 2. June-July. E. Ls. obov., f, covered 



with stiff bristly hairs (like miniature cactus Is.). Fls. i. Pod beaked. 

 Spain. (Fig. 115 E.) 



* V. spinosa. 2. May. E. Spiny. Ls. linear, i, fleshy. Fls. f, few. Spain. 



(Fig. 50 M.) 



Family 14. CISTACEAE. K3-5, C5, A 00, G (3) or (5-10) 



CISTUS. Rock Rose, Sweet Cistin. May-June. E. Ls. opposite, stalks in 

 contact at base. G (5-10). 



{a) Ls. y nerved, or y nerved at base 



C. albidus. 6. Young parts white-felted. Ls. ov., 2, blunt-ended, margins 



recurved, net-veined below. Fls. 2|, pale lilac with patch of yellow at 



base of each petal, K5. South-west Europe. 

 C. crispus. 2. Stems clammy, shining. Ls. narrowly wedge-shaped, i|, 



clammy, margins wavy. Fls. i|, purplish red, K5, crowded in terminal 



heads. Mediterranean region. 

 C. cyprius. 8. Ls. lane, 3. Fls. 3, white with red blotch at base of petal, in 



long-stalked clusters. Cyprus. 

 C.florentimis. 4. Not clammy. Ls. lane, i|, wavy. Fls. 2, white with yellow 



blotch. Hybrid. 



* C. ladaniferus. Gum Cistus. 5. Very clammy. Ls. linear, lane, 4, covered 



with dirty white down. Fls. 4, white with purple blotch, K3, solitary. 



South-west Europe. (Fig. 68 h.) 



Variety albidus. Petals yellow at base, not blotched with purple. 

 C. laurifolius. Bush Rock Rose. 8. Ls. ov., lane, 3, wavy, hairy, long-stalked. 



Fls. 3, white with yellow at base of petals, K3, in hairy erect clusters. 



South-west Europe. (Fig. 68 j.) 

 C. laxus. 6. Ls. lane, 3, dark green. Fls. 2, white, rose-like. South France. 

 C. Loretii. 3. Clammy. Ls. linear, lane, 2\, margins recurved, grey below. 



Fls. 2, white with crimson blotches. Hybrid. 

 C. lusitanicus. 4. Ls. oblong, 2|, rough and sticky. Fls. 2|, white with 



crimson blotches, in terminal clusters. Hybrid. 

 C. monspeliensis. 3. Clammy. Ls. lane, 2, dark green and wrinkled above, 



