MONOECIA TEIANDRIA. 



[Scleria, and Carex. OHD. CXVII. CYPEHACEAE. p. 3434.] 

 [Zea, and Tripsacum. ORD. CXVIII. GRAMmEAE.p.385-6] 



Order 4. Tetrandria. 



BETIJLA. STAMINATE AMENTS cylindric, with the bracts peltate, 

 each with 2 bractlets, and 3 flowers. Calyx a scale, with 4 stamens 

 at base. PISTILLATE AMENTS ovoid-oblong, with the bracts 3-lobed, 

 imbricated. Calyx none. Ovaries 3 under each bract ; stigmas 2. 

 Fruit a lenticular, winged, or samaroid nutlet. ORD. XCIV. BETULA- 

 CEAE. p. 275. 



ALNUS. STAMINATE AMENTS cylindric, pendulous ; bracts 1- to 3- 

 flowered, peltate, each with 5 bractlets. Calyx 4-parted. PISTILLATE 

 AMENTS ovoid-oblong; bracts 2-flowered, somewhat fleshy. Calyx 

 of 4 scale-like sepals. Fruit a compressed angular nut; not winged. 

 ORD. XCIV. BETULACEAE. p. 276. 



MORUS. Flowers in cylindric spikes, occasionally androgynous, 

 sometimes dioicous. Calyx 4-parted. PISTILL. FL. in short dense 

 spikes. Ovary 2-celled, sessile ; styles 2. Akene compressed, covered 

 by the persistent succulent calyx, the whole spike becoming a kind 

 of compound oblong terete berry. ORD. XCVII. URTICACEAE. p. 

 285. 



BOEHMERIA. Flowers in simple axillary spikes, sometimes androgy- 

 nous, often dioicous. STAM. FL. in small bracteate clusters, in 

 slender interrupted spikes. Sepals 4 or 5. PISTILL. FL.. bracteate, 

 in shorter and thicker continuous spikes. Calyx tubular-ventricose, 

 4-toothed or entire, inclosing the ovary. Stigma simple. Akene 

 elliptic-ovate. ORD. XCVII. URTICACEAE. p. 288. 



URTICA. STAM. FL. Sepals mostly 4, valvate. PISTILL. FL. Sepals 

 4, in opposite pairs, the outer pair smaller, sometimes abortive. 

 Akene compressed, ovate-oblong. ORD. XCVII. URTICACEAE. p. 287. 



PILEA. STAM. FL. Sepals 3 or 4. PISTILL. FL. Calyx of 3 un- 

 equal segments, with an incurved scale (or abortive stamen] before 

 each. Stigma pencil-tufted. Akene minutely warty. ORD. XCVII. 

 URTICACEAE. p. 288. 



[Carya. ORD. XCI. JrGLANDACEAE./>.263.] 

 [Maclura, Broussonetia, and Parietaria. ORD. XCVTI. URTICACEAE. p. 2846.] 



Order 5. Pent and ria, 



AMARANTHUS. Flowers imbricated with dry scarious persistent 



bracts. Calyx of 3 or 5 sepals, mostly colored, and connected at 



base. Corolla none. Stigmas 2 or 3. Utricle circumscissed, or 



indehiscent, 1-seeded. ORD. LXXVIII. AMARANTHACEAE. p. 244. 



[Ambrosia, and Xanthium. ORD. LI. COMPOSITAE. p. 138 9.] 



[Celtia. OHD. LXXXV. ULMACEAE. p. 256.] 



[Quercus. ORD. XCII. CUPULIFERAE. p. 265.] 



Order 6. Hexandria. 



[Comptonia. ORD. XCIII. MTRICACEAE. p. 274.] 



[Melanthium, and Veratrum. ORD. CXI I. MFLAMTHACEAE. p. 323.] 



[Zizania. ORD. CXVIII. GRAMINEAE. p. 356.] 



