fSuceda.] cvii. chenopodiace.e (baker and clarke). 93 



Nile Dband. Makaur Island, on the Nubian coast, Schweinfurth,T-^Q ! Eritrea: 

 Massowa, Schiveinfurth ^ Riva, 31 ! 68 ! 



Also in Arabia. 



Suceda puberula, Moquin (in DC. Prodr. xiii. ii. 157), had very farinose 

 pubeiulous leaves, each seated on a minute tubercle, and white branches, and was 

 probably the present plant. S. vermiculata, Moquin (in DC. Prodr. xiii. ii. 155), 

 is probably partly the present species as to description ; but the specimen issued is 

 S. Volkensii, above. 



11. CORNULACA, Delile; Benth. et Hook. f. Gen. PI. iii. 61). 



Flowers polygamous, mostly imperfect. Perianth-segments 5, united 

 into a hard cup at the base ; segments lanceolate, dilated upwards, 

 membranous, or 1 or 2 of them spinous. Stamens 5 ; staminodes short, 

 quadrate. Ovary ovoid, free or immersed in a disc ; style short, with 

 2 branches ; ovule 1, nearly sessile. Utricle enclosed within the hardened 

 base of the perianth ; embryo spiral, without albumen ; seed (where 

 known) horizontal. — Small harsh undershrubs ; stem (and branches) 

 continuous. Leaves small, alternate, when young ending in a spine. 

 Flowers axillary, solitary or clustered, buried in wool in all the species 

 except C. Ehrenhergii. 



Species 4 or 5, extending from North Africa to Kabul. 



Many leaves distant. Flowers immersed in wool . . 1. C. monacantha. 



Leaves densely imbricate. Flowers not immersed in 



wool 2. C. Ehrenhergii. 



1. C. monacantha, Del. Fl. Egypte, 20G, t. 22. A much- 

 branched rigid low undershrub. Leaves J-J in. long, lanceolate, 

 curved, ending in a spine, the base ovate, many distant ; in age the 

 spine often disappears, and the base of the leaf on the old branches 

 becomes a cushion. Flowers clustered, buried in wool. Perianth in 

 flower \ in. long ; the spathulate lobes elongate in fruit, and one at 

 least usually becomes spinescent. — Moquin in DC. Prodr. xiii. ii. 218 

 Schweinf. Beitr. Fl. Aethiop. 186 ; Zarb in Cat. Spec. Bot. Pfund, 34 

 Boiss. Fl. Orient, iv. 984; Volk. in Engl. & Prantl, Pflanzenfam. iii 

 lA, 89, fig. 44, A-D. 



xrortb Central. Sahara Desert in tlie Teda country, south of Tedjerri, 

 Vogel ! 



Zrile Xiand. Nubia : Dongola, Ehrenherg. 



Also in North Africa and Western Asia. 



2. C. Ehrenbergii, Aschers. in Schweinj. Beitr. Fl. Aethiop. 184. 

 A densely-branched undershrub. Leaves J-J in. long, closely imbricate, 

 curved outwards, lanceolate, mucronate ; in age the branches are clothed 

 with ovoid cushions from which the spines have entirely disappeared. 

 Flowers solitary in the axils, not immersed in wool. Segments of 

 perianth lanceolate, all shortly mucronate. 



Nile Iiand. Ketumbal Island, Ehrenberg ! Eritrea : Massowa, Steudner, 

 Somaliland : coast, Faurot. 



