CHAP. LXXV. OLEA'CEiE. O'rNUS. 1241 



5 36. F. Schiedea'na Schlecht. Schiede's Ash. 



Identification. Schlecht. et Cham, in Linnsa, 6. p. 1. ; Don's Mill, 4. p 55. 



Synonyme. Fagara dObia Rcem. et Schult., 3. p. 288. 



Spec. Char., S;c. Glabrous. Leaves with 3 pairs of sessile, lanceolate, bluntish, quite entire leaflets, 

 or with a few obsolete serratures in front ; the old ones the longest, and attenuated at the base • 

 all thin, shining above, and paler beneath. Common petiole channeled. Samara nearly linear' 

 with the wing hardly dilated in front, elliptic-oblong, obtuse at the apex, ending in an oblique 

 little point. Calyx deeply 5-parted. Stigmas 'Z (_Don's Mil/., iv. p. 55.) A tree, 10 ft. to 15 ft. 

 high J a native of Mexico, in warm situations. Not yet introduced. 



Genus VII. 



O'RNUS Pers. The Flowering Ash. Lin. Syst. Diandria Monogynia, 

 or Polygamia DioeVia. 



Identification. Pers. Ench., 1. p. 8. ; Pursh Fl. Amer. Sept., 1. p. 6.; Nutt. Gen. Amer., 1. p. 6.: 



Lindl. Nat. Syst. Bot., p. 308. ; Don's Mill., 4. p. 56. ; 

 Synony7nes. i^raxinus sp. of the older authors ; le Frfene ^ Fleurs, Fr. ; die bliihende Esche, Ger. ; 



Oren, Hebrew ; Oreine melia, Greek. 

 Derivation. From oros, the Greek word for a mountain. 



Gen. Char., i^c. Flowers hermaphrodite, or of distinct sexes. Calyx 4- 

 parted or 4-toothed. Corolla 4-parted ; segments long, ligulate. Stamens 

 with long filaments. Stigma emarginate. Samara 1 -celled, 1 -seeded, 

 winged. (Don^s Mill., iv. p. 56.) — Trees, natives of Europe, North America, 

 and Asia ; with impari-pinnate leaves, and terminal or axillary panicles of 

 flowers, distinguished from those of the common ash, by having corollas. 

 Culture and price as in the American species of i^raxinus. 



3f 1. O. EUROP-E^A Pers. The European Flowering, or Manna, Ash. 



Identification. Pers. Ench., 1. p. 9. ; Sav. Trat.,' ed. 2. t. 1. ; Don's Mill., 4. p. 5a 



Synonymes. Fr^xinus O'rnus Lin. Sp., 1510., Smith Fl. Gritc, 1. t. 4., Mill. Ic, t. 1., Lam. 

 III., 9. t. 858. f. i;., H'oodv. Med. Bot., 1. p. 104., Church, et S/ev. Med. Bot., 2. t. 53., Lodd. Cat, 

 ed. 1836; F. O'rnus, and F. paniculata Mill. Diet., No. 3. and No. 4. ; F. florifera Scop. Corn., 

 No. 1250. ; F. botryoides Mor. Pra;tud., 265. ; F. vulgktior Segn. Ver., 2. p. 290. 



Engravings. Fl. Grajc, 1. t. 4. ; Mill. Fig., t 1. ; Lam. 111., 9. t 858. f. 2. ; Woodv. Med. Bot., 1. 

 p. 104. t. 36. ; Church, et Stev. Med.. Bot., 2. t 53. ; N. Du Ham., 1. 15. ; and the plates of this 

 species in our last Volume. 



Varieties. O'rnus rotundifi)lia and 0. americana, described below as species, are, without doubt, 

 only varieties of 0. europae'a ; and there is another variety, introduced from the Continent in 1835, 

 of which there are young plants in the collection of Messrs. Loddiges, bearing the name ot F. rnus 

 globi'fera. 



Sjyec. Char., Sfc. Leaves with 3 — 4- pairs of lanceolate or elliptic, attenuated, 

 serrated, stalked leaflets, which are entire at the base, villous or downy 

 beneath. Flowers greenish white. Peduncles axillary, solitary, shorter 

 than the leaves. Flowers complete or hermaphrodite. Young branches 

 purplish or livid, with yellow dots. Buds cinereous. {Do7i's Mill., iv. p. 56.) 

 A tree, from 20 ft. to 30 ft. high ; a native of the south of Europe. Intro- 

 duced in 1730, and flowering in May and June. 



Projiei-tics and Uses. This species, the following one, and, probably, all 

 those of both the genera i^raxinus and O'rnus, extravasate sap, which, when 

 it becomes concrete, is mild and mucilaginous. This sap is produced in more 

 abundance by O'rnus europae^a and O. rotundifolia, than by any other species ; 

 and, collected from these trees, it forms an article of commerce under the name 

 of manna. This substance is chiefly collected in Calabria and Sicily ; where, 

 according to the Materia Medica of Geoffroy, the manna runs of itself from 

 the trunks of some trees, while it does not flow from others unless wounds 

 are made in the bark. Those trees which yield the manna spontaneously 

 grow in the most favourable situations; and the sap runs from them spon- 

 taneously only during the greatest heats of summer. It begins to ooze out about 

 mid-day, in the form of a clear liquid, which soon thickens, and continues to 

 appear till the cool of the evening ; when it begins to harden into granules, 

 which are scraped off" the following morning. When the night has been damp 



