336 UKTICACE^E. 



3. MACLURA, Nutt. 



Dedicated to ffiltiam Maclure, Esq., of the U. S., a distinguished geologist. 



Flowers polygamous, in aments. Ovaries numerous, 

 coalescing into a compound globose fruit, composed of 1-seed- 

 ed, compressed, angular, wedge-form carpels. Style 1, fil- 

 iform, villous. — A lactescent tree, with alternate entire leaves, 

 without stipules, and axillary spines. 



M. AUR\nttaca, Nutt. Osage range. Bow-wood. 



Leaves ovate or ovato-oblong, obscurely denticulate, somewhat acuminate, cori- 

 aceous, smooth and shining above, strongly veined beneath. A beautiful tree, na- 

 tive on the banks of the Arkansas. Leaves 4 to 5 inches long, V/ z to 2]/^ wide, on 

 short petioles. Fruit about as large as; an orange, golden yellow when ripe, sus- 

 pended by an axillary peduncle, which amidst the dark glossy foliage forms a beau- 

 tiful contrast. 



Suborder ii. CANNABINEJE. Hemp Family. 



Erect or twining herbs, with, a watery juice. Flowers dioecious, the sterile rac«- 

 medor panicled. Styles 2. Fertile FLOWERgdu a cone-like ament. 



4. IIUMULUS, Linn. Hop. 



Lat. humus, moist earth; the hop flourishes only in rich soil. 



Flowers dioecious; the sterile in loose axillary pani- 

 cles : sepals and stamens 5. Fertile flowers in short 

 axillary and solitary spikes or aments : (bracts foliaceous, im- 

 bricated, each 2 -flowered : calyx 1-scpaled, embracing the 

 •ovary. Aciienia invested with the enlarged scale-like calyx, to- 

 gether forming a membranaceous strobile. — A rough perenn ial 

 twining herb, with mostly opposite heart shaped, 3 to 5 lobed leaves 

 and the Jlowers in axillary panicles and strobile-like aments. 



H. LuruLus, L. Hop. 



Leaves mostly St-iobed, deeply cordate at base, on long petioleF. 



Hanks of streams, truly indigenous. July. Stem twining with the sun. Calvz- 

 scalts in fruit covered wiih orange-colored resinous grains, 'in "which the peculiar 

 •bitterness and aroma of the hop resides. 



5. CANNABIS, Tourn. Hemp. 



The ancient name, of obscure etymology. 



[Flowers dioecious j the sterile in axillary compound 

 racemes or panicles : sepals and stamens 5. FERTILE 

 flowers spiked-clustered, 1-bracted : calyx of a single se- 

 pal, swollen at the base and folded round the ovary.— J. tall 

 roughish annual, with digitate 5 to 7 -parted leaves, and axillary 

 Jlowers, the siaminate in cymose panicles and the fertile in tessile 

 spikes. 



