AMARANTACE^. (AMARANTH FAMILY.) 413 



2. MONTELIA, Moquin (under ACNIDA). 



Flowers dioecious, 2 -3-bracted. Staminate flowers of 5 thin oblong and mu- 

 cronate-tipped sepals, longer than the bracts, and as many stamens with oblong 

 anthers; the cells of the latter united only at the middle. Pistillate flowers 

 without any calyx, their lanceolate awl-pointed bracts longer than the 1-ovuled 

 ovary : stigmas 2-4, very long, bristle-awl-shaped, plumose-hispid. Fruit a thin 

 and membranaceous globular utricle, smooth and even, opening transversely 

 around the middle ; the upper part falling off like a lid. Radicle of the annular 

 embryo inferior. An annual glabrous herb, mostly tall, with lanceolate or ob- 

 long-ovate alternate leaves, on long petioles, and small clusters of greenish flow- 

 ers, usually crowded into elongated and panicled interrupted spikes. (Probably 

 a personal name.) 



1. M. tamariscina.' (Amarantus tamariscinus, Nutt. A. altissimus & 

 Miamensis, Riddell. Acnida altissima, Michx. herb. A. rusocarpa, Moquin, &c. ) 

 Low grounds and moist sandy shores, Vermont to Wisconsin, Illinois, and 

 southward, especially westward. Aug., Sept. Var. CONCATENATA is a form 

 with the lower clusters in the fertile plant forming thickish distant heads (5" - 6" 

 in diameter) in the axils of the leaves ; the stems often low and spreading or 

 decumbent. A very variable plant, as to inflorescence, height (l-6high), 

 the size and shape of the leaves (l'-5' long, the petioles often of the same 

 length), the bracts more or less awl-shaped, equalling or exceeding the fruit 

 (which is that of Amarantus) : but all are forms of one species. The sterile 

 plant is Acnida rusocarpa, Michx., or was mixed with it in Michaux's collec- 

 tion, but the fruit is neither obtuse-angled, rugose, nor indehiscent. That name 

 is unmeaning, perhaps a misprint of ruscocarpa. 



3. ACNIDA, L. WATER-HEMP. 



Fruit a fleshy and indehiscent utricle, 3-5-angled, the angles often rugose or 

 tubercled-crested. Stigmas 3-5, shorter than the ovary, linear-awl-shaped. 

 Flowers in rather loose panicled spikes. Otherwise as in the preceding genus. 

 (Name formed of a privative and Kvidr), a nettle.) 



1. A. cannabina, L. Annual, tall (2 -6 high); leaves elongated-lan- 

 eeolate or ovate-lanceolate, long-petioled ; fruit globular (l"-2" long), much 

 exceeding the pointless bracts. Salt marshes on the coast, Massachusetts to 

 Virginia and southward. Aug. -Oct. Probably the only species; for A. 

 rusocarpa, Michx., is certainly to be divided between this and Montelia tamaris- 

 cina ; and A. tuberculata, Moquin, must be one or the other. 



4. I R E S I N E , P. Browne. IRESINE. 



Flowers mostly polygamous or dioecious, 3-bracted. Calyx of 5 sepals. Sta- 

 mens mostly 5 : filaments slender, united into a short cup at the base : anthers 

 1-celled, ovate. Fruit a globular utricle, not opening. Herbs, with opposite 

 petioled leaves, and minute scarious-white flowers, crowded into clusters or spiked 

 and branching panicles ; the calyx, &c. often bearing long wool (whence the 

 name, from eipeo-icbi/j/, a branch entwined with fillets of wool borne in proces- 

 sions at festivals.) 



