

288 xxxi. zygophylle^ (olivek). [Seetzenia. 



Leaflets fleshy, apiculate, the median obovate-cuneate, lateral oblique, | in. 

 long, more or less, rarely \ in., exceeding or equalling the petiole. Pe- 

 duncles \-\ in., at length more or less recurved at the apex. Fruit ellip- 

 soid or subglobose, the carpels separating longitudinally and exposing the 

 smooth crustaceous endocarp more and more as it matures, £-| in. long. — 

 S. orientalis, Decne. in Ann. Sc. Nat. Scr. 2. iii. 281. t. 7. Zygophyllum 

 prostratum, Thunb. fide Sond. Fl. Cap. i. 366. 



Nile Land. Upper Egypt ! 



With regard to Zygophyllum lanatum, Willi!., referred to above, it is described as woolly 

 at the articulations and with long filiform styles, characters which do not well apply to the 

 specimens which I have seen. 



5. NITBARIA, Linn. ; Benth. et Hook. f. 1. c. 265. 



Calyx small, usually 5-fid, persistent. Petals 5, rather fleshy, concave, 

 induplicate-valvate. Stamens 15, rarely fewer; filaments naked, subulate. 

 Ovary oblong-conical, " 2-6-celled with a solitary ovule in each cell;" stigma 

 3-(2-6-)lobed ; lobes adnate, shortly decurrent ; ovules ascending from pen- 

 dulous funicles, adnate near the middle. " Fruit narrow-conical, i in. long 

 or less, with a thin pulpy epicarp and bony, longitudinally-sulcate, 1 -seeded 

 putamen, separating into 6 subulate teeth at the apex. Seed exalbuminous. 

 — Glabrous or shortly silky-hoary shrubs, spinose or unarmed. Leaves alter- 

 nate or fasciculate, spathulate or cuneate, minutely stipulate. Flowers in 

 lateral scorpioid or corymbose cymes, sessile or pedicellate, white. 



The two following are the only species of the genus which I have seen. 



Leaves oblanceolate or spathulate, entire, usually obtuse. Flowers sessile 



or subsessile \. N. Schoberi. 



Leaves obovate- or oblanceolate-cuneate, usually 3-toothed at the apex 



more or less. Flowers usually distinctly pedicellate 2. N. tridentata. 



1. N. Schoberi, Linn.; DC. Prod. iii. 456. A hoary or glabrous 

 shrub with rigid, often long, decurved branches, with or without short, 

 lateral, spinose ramuli. Leaves fleshy, fasciculate, oblanceolate- or obovate- 

 cuneate to elongate-spathulate, obtuse, entire, glabrous or minutely silky- 

 hoary, ^-1 in. long or more. Flowers in lateral subpaniculate scorpioid or 

 corymbose cymes, exceeding the leaves, sessile or subsessile. — N. senegalensis, 

 Lam. ; DC. Prod. iii. 456 ; Lam. 111. t. 403. f. 2. 



Upper Guinea. Senegal ! 



Also in dry and saline regions of Asia and Australia. 



2. N. tridentata, Desf. ; DC. Prod. iii. 456. Differs from the usual 

 forms of N. Schoberi in its more obovate-cuneate leaves usually 3-lobate or 

 3-dentate at the apex, -§-| in. long, 3-5 lines broad, and in the pedicellate 

 flowers ; pedicels frequently } in. long or more.— Jaub. et Spach, 111. t. 293, 

 and N. sericea, t. 294. 



I have no record of the occurrence of this species between the tropics. Caillaud (fide 

 Delile, Voy. a Meroe, 99) found it at Rayan, between Fayoum and Syouah. M. Boissier 

 reduces N. senegatensis, Lam. Encycl. iv. 493, Illust. 403. f. 2, to this species, but I think 

 our Senegal specimen and Lamarck's figure agree better with 'n. Schoberi. The fruit of 



