734: JUOLANDACE^. (^VAL^'UT FAMILY). 



late flowers : limb of peiigonium hyaline; style deciduous with limb of 

 perigonium after flowerino:; pericarp of nutlet thickish, beset with little 

 warts containing needle-like crystals, and between the warts longi- 

 tudinal, naked lines — Annual lierbs, with hyaline stipules. 



C. proslrata, Gwrtn. © .1 to .3. Leaves petioled, ovate- 

 rhombic, .01 to .03 long, scabrous-margined, the lowest opposite, the 

 upper, on account of the small size or abortion of their opposites, 

 alternate; stipules entire or dentate, those of opposite leaves connate, 

 of the others clasping. Flowers minute, sessile, green ; the staminate 

 twin, toward tip of branches, opposite the alternate leaves, naked; the 

 pistillate at axils of leaves, especially of the opposite ones, three or less 

 in a cluster, bracted — IMay and June — Common. 



Order XCVII. PI^ATAXACE.E, Lindl. (Plane Tree Family). 



Trees lulth vxctery juice ^ alternate, palmately lobed 

 leaves, sheathing stijyides, and raoncBcious floicers in separate 

 and naked spherical heads, destitute of calyx and corolla ; 

 the fruit clui-shaiyed, 1-seeded nutlets, furnished loith Iristly 

 dovm along the lase — Perigonium reduced to minute, liaiiy 

 scales, often 0. An order witli only one genus. 



PJLATANFS, Tourn. Plane Tree. Buttonwood. Dilb, 



Staminate floioers. of numerous stamens, with club-shaped, little 

 scales intermixed; filaments short, anthers 2-celled, oblong, with a 

 truncate-peltate connective. Pistillate flowers, consisting of ol3conical, 

 1 -celled ovaries, hairy at base, ending in an elongated-subulate style, 

 stigmatic at apex, these flowers intermixed with club-shaped scales. 

 Nutlets coriaceous, small, tawny-hairy below, containing a single, 

 orthotropous, pendulous seed. Embryo straight in axis of thin albu- 

 men or albumen — Trees; peduncles terminal on twigs, the leaves of 

 which are not yet developed, elongated, pendulous, moniliform, bear-« 

 ing 3-7, subsessile heads. 



P. Oriciitalis, L. 5 Orientid Plane Tree. Bilh. 20 or more, 

 bark scaling o£E in sheets. Leaves woolly beneath then glabrescent, 

 cuneate or truncate or subcordatc at base, more or less deeply 3-5-cleft 

 into lanceolate, lobed or dentate segments — Early spring — By water, 

 usually fountains or torrents or rivers, from el-GhOr to subalpine 

 regions. 



Order XCVIL JUGI.AIVI>ACE JG, Lindl. (Walnut Family). 



Trees with alternate, ijinnate leaves, and no stipides ; 

 floioers monmcious, the staniinate in catMns (aments) with 

 an irregidar jjerigonium adnate to the hract ; the instillate 

 solitary or in a small cluster or spike, with a regular, eS-5- 

 lobed j)erigonium, adherent to the incomjyletely '^A-celled, 1- 

 ovuled ovary. Frxdt a dry drupe, with a crustaceous or 

 hony nut-shell, containing a large, '^-lobed, orthotropous 

 seed — Albumen 0. Cotyledons fleshy, crumpled, oily, 2-lobed ; 



