CELASTRINEZ. 195 
obtusa, integerrima, subtus lanata, supra pubescentia ; calyx persistens, parvus, pubescens, 5- 
lobus, lobis inzequalibus. Fructus trialatus, monospermus, stylis persistentibus brevibus. 
Soutn Mexico, Zimapan (Coulter, 868). Hb. Kew. 
Only fruiting specimens seen ; but easily distinguished from L. viscosa by its densely 
hairy entire leaves. : | 
9. Liavea viscosa, Licbm. in Vidensk. Meddel. 1853, p. 95. 
SourH Muzxico, Acapulco, Puebla, 7000 feet (Liebmann). Hb. Kew. 
Order XXXIX. RHAMNACE. 
Rhamnee, Benth. et Hook. Gen. Plant. i. p. 371. 
Trees or shrubs, very rarely. herbaceous. About 450 species and forty genera; 
widely dispersed in tropical and subtropical regions, and less numerously in temperate 
regions. 
Tribe ZIZYPHEA. 
1. ZIZYPHUS. 
Zizyphus, Juss. Gen. Plant. p. 380; Benth. et Hook. Gen. Plant. i. p. 375. 
About fifty shrubby and arboreous species, dispersed all over the tropics, and 
extending into some subtropical regions. ° 
1. Zizyphus acuminatus, Benth. Bot. Voy. Sulph. p. 78. 
Sout Mexico, Acapulco (Barclay). 
2. Zizyphus guatemalensis, Hemsley, Diag. Pl. Nov. pars 1, p. 6. 
Fruticosus, preter flores, glaberrimus parce spinosus, ramulis flexuosis, foliis coriaceis petiolatis 
oblongo-ellipticis utrinque rotundatis apice interdum retusis prominenter trinerviis obscure 
calloso-crenulatis, floribus parvis pedicellatis subumbellatis, umbellis axillaribus breviter pe- 
dunculatis ad 10-floris, ovario biloculari. . | 
Frutex parce spinosus, ramosus, spinis rectis, ramulis gracilibus flexuosis. Folia petiolata, coriacea, 
glaberrima, prominenter trinervia, minute reticulato-venosa, oblongo-elliptica, 2—-3-pollicaria, 
utrinque obtusissima vel rotundata, apice interdum retusa, obscure calloso-crenulata, petiolo 
2-3 lin. longo; stipulis minutis, subulatis, deciduis. Flores parvi, pedicellati, umbellati, umbellis 
axillaribus pedunculatis ad 10-floris, pedunculis 2-3 lin. longis, pedicellis calycibusque pubes- 
centibus, pedicellis 1-1} lin. longis; calyx 5-lobatus, lobis eequilatere triangularibus apice 
acutis ; petala minuta, cucullata ; discus carnosus, accrescens ; ovarium biloculare biovulatum, 
stylo simplici, erecto, stigmate breviter bifido. Fructus non visus. 
Guaremata (Skinner). Hb. Kew. 
3. Zizyphus heteroneurus, Griseb. in Bonplandia, 1858, p. 3. 
Panama (Duchassaing). 
4, Zizyphus lycioides, A. Gray, Pl. Lindh. p. 168, in adnot. © 
Texas, New Mexico, Arizona to—NorTH Mexico, between Matamoras and Mapimi 
(Gregg). Hb. Kew. 
2¢2 
