478 CXXXVL URTICACEÆ. (J. D. Hooker.) 
Male sepals induplicate-valvate. Stipules free. Cotyle- 
dons harrow. . . . 4 e e e ee ee ew n. n A TREMA, 
Male sepals imbricate. Stipules connate, convolute . . 5, GIBONNIERA. 
Trise II]. Cannabineze. Herbs, sap watery. Flowers dicecious. 
Anthers erect in bud. Style 2-fid. Ovule pendulous. Fruit an achene. 
A climbing hispid perennial Leaves opposite. Embryo 
spiral . . 2 4 4 4 ee we ee ee . 5*, HUMULUS. 
An erect annual. Leaves alternate. Embryo curved. . 6, CANNABIS. 
Trips IV. Moree. Trees or shrubs, sap usually milky. Stamens 
inflexed in bud, anthers reversed. Ovule pendulous, anatropous. 
Subtribe 1. Farovem. Male fi. in axillary cymes, with a few fem. inter- 
mixed, or fem. fl. solitary.—Shrubs or trees. 
Leaves entire. Male sepals imbricate. Cotyledons twisted 7. PSEUDOSTREBLCUS. 
Subtribe 2. Srrrsrrz. Male fl. capitate spicate or racemose, fem. soli- 
tary or few on a common peduncle. Style 2-fid.—Shrubs or trees. 
Male fl. racemed ; bracts minute. Fem. sepals very short 8. TAXOTROPHIS. 
Male fl. subcapitate; bracts many, large. Fem, sepals 
foliaceous. . . . 4. l.l. ee ee ee) 9. PBHYLLOCHLAMYS. 
Male fl, subcapitate ; bracts 2. Fem. sepals clasping the 
ovary. . . e es se . 10. STREBLUS. 
Subtribe 3. BnoussoweTIEx. Male fl. capitate spicate or racemose, fem. 
in globose head. Style undivided, elongate.— Shrubs or trees. 
Male fl. spicate. Achenes stipitate. Leaves 3-nerved . 11. BRUOSSONETIA. 
Male fl. spicate. Achenes sessile. Leaves penninerved . 12. ALLHZANTHUS. 
Male fl.in globose heads. Achenes sessile. Leaves penni- 
nerved . . . . . 18. PLECOSPERMUM. 
Subtribe 4. EvwonEx. Male and fem. fl. spicate, or fem. subcapitate. 
Fem. sepals fleshy in fruit and enclosing the achene . . 14. MORUS. 
Subtribe 5. DonsrENiEX. Male and fem. fl. crowded on a narrow OF 
broad flat fleshy receptacle. 
Receptacle linear, like a unilateral spike.— Trees . . . 15. SLOETIA. 
Receptacle flat, entire or lobed.—Herbs or shrubs . . . 16. DoRSTENIA. 
TzrsE V. Artocarpese. Trees or shrubs, sap usually milky. Flowers 
unisexual, males or all in globose heads or open or closed receptacles. 
Anthers erect in bud. 
Flowers on the inner walls of a closed receptacle . . . 17. Ficus. 
Male fl. on a disciform receptacle, fem. solitary . . . 18. ANTIARIS. 
Fiowers in naked or bracteate heads, rarely racemes. 
Flowers all in globose heads; stamens 4. . . . . 
Flowers in globose oblong or cylindric heads, male 
monandrous , . . . . . . . . . . . . 20, ARTOCARPUS. 
Male fl. in cylindric spikes, fem. racemose . . . 21. BALANOSTREBLUS. 
19. CUDRANIA. 
Trise VI. Conocephaleæ. Shrubs, often climbing, or trees, 5°? 
usually milky. Flowers in unisexual heads. Anthers erect in bud. Sty 
undivided or 2-fid. Ovule erect, orthotropous. 
Male and fem. heads cymose, or fem. solitary. Stamens 
free. Styleshort. . . . . . . . a a a . 22. CoNOCEPHALUS. 
