XLIX. RHAMNEA, 375 
'TRiBUS [| VENTILAGINEJR. 
l. ventilago, Gerín. Fruct. i. 223. t. 49. Calyx 5-fidus, tubo obconico, lobis patenti- 
bus acutis intus carinatis. Petala 5, deltoidea, obcordata v. 2-loba, cucullata, deflexa. 
Stamina 5, basi petalis adnata iis paulo longiora, filamentis filiformi-subulatis ; connectivo 
ssepissime excurrente. Discus O-gonus, nudus v. pubescens, margine plano libero.  Ova- 
rium disco immersum, subglobosum, 2-loculare; stylus brevissimus, compressus, stigmati- 
bus 2 brevibus. Nux subglobosa, basi v. supra medium tubo calycis inclusa, superne in 
alam linearem coriaceam expansa, l-locularis, l-sperma. Semen subglobosum, testa 
membranacea, albumine 0; cotyledones crasse, carnose ; radieula brevissima, infera.—Fru- 
tices scandentes, glabri v. pubescentes, ramis teretibus. Folia subdistiche alterna, petio- 
lata, ovata v. oblonga, acuta, basi obliqua. Stipule minutissimse, caducse.  Panicule ter- 
minales et axillares, solitaris v. terns. Flores parvi, in ramulos fasciculati, minutissime 
bracteolati. 
Species ad 10, tropicze, Afrieam, Asiam, Australiam, et ins. Pacificas incolentes. T'ulasne, ii Ann. 
Sc. Nat. ser. iv. 8, 120. — Benth. in Journ. Linn. Soc. v. 17. Wight, £c. t. 163. 
2. Smythea, 5. ,in Bonpl , 1861. 255.—Oalyx tubo obconico, lobis 5 paten- 
tibus. Petala 5, eucullata, late cr v. 9-loba. Stamina 5, petalis non occlusa, 
filamentis incurvis; antherz  muties, didym:e, rimis non confluentibus. Discus 5-gonus, 
planiusculus, Ovixiux semiinferum, 2-loculare; styli 2, recurvi. Capsula ovato-lanceo- 
lata, compressa, exalata, crasse crustacea, ima basi calycis tubo suffulta, secus lineam 
mediam dehiscens, 2-valvis, l-locularis, l-sperma. Semen magnum, compressum, exalbumi- 
nosum.—Frutex subscandens, habitu foliisque Ventüaginis, ramulis teretibus flexuosis, ulti- 
mis floribusque puberulis. Flores fasciculati, pedicellati, fasciculis axillaribus v. secus 
ramulos terminales laxe paniculatis. Capsula uncialis, puberula. 
Species 1, Ins. Fiji incola. Genus Ventilagini valde affine, et cum eo habitu omnino congruens; 
differt fructu non alato seeus lineam mediam dehiscente. 
Tarsus II. ZizyPHE:X. 
3. Paliurus, Juss. Gen. 380. (Aubletia, Lour. Fl. Coch. 983.)—Calyx 5-fidus, tubo late 
obconieo, lobis patentibus 3-angulari-ovatis acutis intus carinatis. .Petala 5, parva, cucul- 
lata, sepe deflexa. — Discus 5-lobus, margine plano libero. Stamina 5, petalis inclusa v. 
exserta, basi petalis adnata, filamentis subulatis basi compressis. Ovarium disco semiim- 
mersum, liberum, subglobosum, 3-loculare ; stylus brevis, stigmatibus 3 oblongis. Fructus 
Siecus, coriaceus, hemisphericus, superne in diseum magnum orbicularem integrum v. 
lobatum membranaceum expansus, putamine lignoso 3-loculari, 3-spermo. Semina erecta, 
obovata, compressa, testa crustacea lwvi, albumine tenui carnoso; cotyledones subrotunds, 
plans; radicula brevis conica.— Frutices suberecti v. decumbentes, glabri v. tomentelli 
aculeis stipularibus geminis rectis v. altero recto et altero recurvo horridi. Folia subdis- 
tiche alterna, petiolata, ovata v. cordata, 3-nervia, crenulata. Pedicelli axillares, fasciculati 
v. in cymas breves aggregati. Flores parti. 
"Species 2, altera Europ:e australis et Asie occidentalis, altera Chinre australis incola, DC. Prod, 
ii.22. Benth. Fl. Hongk. 66. — Bot. Mag. 1.20359. Gern. Fruct. i. 203. t. 43. Petala deflexa in 
speeie Europwa sed, ut videtur, non in Chinensi. 
4. Zizyphus, Juss. Gen. 980.—Calyx 5-fidus, tubus late Staub, lobis 3-angulari- 
ovatis acutis patentibus intus carinatis. Petala 5 (rarius 0), cucullata, deflexa. — Discus 
planus, 5-gonus, margine libero. Stamina 5, petalis inclusa v. iis longiora, filamentis subu- 
latis. Ovarium disco immersum, basi cum eo confluens, 2- rarius 3- rarissime 4-loculare; 
styli 2-3, conici, liberi v. connati, divergentes, stigmatibus parvis papillosis. Drupa car- 
nosa, globosa v. oblonga, putamine ligneo v. osseo 1-3-loculari 1-9-spermo. Semina plano- 
convexa, testa tenui fragili lxvi, albumine O v. tenuissimo v. mediocri; cotyledones crassm ; 
radicula brevis.— Frutices v. arbores sepe decumbentes v. sarmentosi, aculeis sepissime 
uncinatis horridi, Folia subdistiche alterna, petiolata, coriacea, integerrima v. erenata, 
