74 JUGLANDE^. 



CALYCAJfTHUS, Limiseus (Sweet-Scented Sheub). Fragrant shrubs 

 with opposite entire exstipulate leaves, and solitary terminal large red 

 or purple flowers. Sepals go , in many ranks, inserted on a persistent 

 obconical tube ; the outer successively shorter and bract-like, the inner 

 longer and colored like the petals ; all deciduous. Petals go , on the 

 mouth of the tube, the inner shorter. Stamens go , inserted on the upper 

 part of the tube within, the inmost without anthers ; filaments short, 

 persistent. Pistils oo, distinct, inserted on the base and sides of the 

 calyx-tube ; styles terminal. Achenes enclosed in the dry thin fibro- 

 ligneous calyx-tube. Seed erect ; albumen ; cotyledons foliaceous, 

 convolute. 



1. C. occideutalis, H. & A. Bot. Beech. 340. t. 84 (1840). Shrub 6—12 

 ft. high : leaves dark-green, ovate to oblong-lanceolate, scabrous, 3—6 in. 

 long : peduncles 1 — 3 in. long ; petals and larger sepals linear-spatulate, 

 1 in. long or more ; inner petals incurved : sterile filaments linear- 

 subulate, densely villous : fruiting calyx ovate, 1^ in. long : achenes 

 villous, 4 lines long. — Common along streams in the lower mountains. 

 Flowers of a dull dark red. May — Aug. 



Order VI. J U G L A N D E /E . 



De Candolle, Theorie Elementaire, 215 (1813). 



Eepresented by a single species of the genus 



JUGLANS, Pliny (Walnut Tree). Trees with hard wood, alternate 

 exstipulate unequally pinnate somewhat resinoiis-aromatic leaves, and 

 unisexual flowers. Staminate flowers in long aments, 12-40 stamens to 

 each of the 3-lobed green perianths ; the pistillate solitary, or few and 

 spicate, their calyx adherent to the ovary, 4-toothed and bearing 4 small 

 petals. Pistil 1 ; style short ; stigmas 2, linear or clavate, fringed. 

 Pericarp large, fleshy, indehiscent, enclosing a rugose nut which in 

 germination parts into two valves. Seed without albumen ; cotyledons 

 fleshy, 2-lobed, rugose. 



1. J. Calif oniica, Wats. Proc. Am. Acad. x. 349 (1875) ; /. mpesiris, 

 var. major, Torr. Sitgr. Rep. 171. t. 16 (1854), Tree 40—60 ft. high, the 

 trunk 2—4 ft. thick : • leaflets 5 — 8 pairs, oblong-lanceolate, acute, 2—23^ 

 in. long : aments loose, 4—8 in. long : fruit globose, little compressed, 

 1 in. thick : nut shallow-sulcate. — Frequent along streams, chiefly back 

 from the seaboard. 



Order VII. R U T A C E /E . 



De Candolle, Prodromus, i. 709 (1824). Eut^, Juss. Gen. 296 (1789). 

 Represented by a single species of the genus Plelea. 

 PTELEA, Linnieris (Hop-Tree). Shrubs or small trees with alternate 

 3-foliolate aromatic pellucid-dotted leaves, and corymbose regular flowers. 



