82 

 LOCAL FLORA NOTES 



Weeds of New York 



Joseph Monachino 



The following are, with few exceptions, represented by speci- 

 mens deposited in the Local Flora Herbarium of the New York 

 Botanical Garden : 



Aristida oUgantha Michx. Sheepshead Bay, Brooklyn. Sept. Not as 

 abundant as 



Aristida tuberculosa Nutt. Richmond Valley, Staten Island, where lawns 

 were covered with this long awned grass, reminiscent of its prolificness 

 in southern New Jersey along the tracks of the N. J. Central R. R. Aug. 



Arthraxon hispidus var. cryptatherus (Hack.) Honda. Near the propagat- 

 ing house, N. Y. Botanical Garden, Bronx. Oct. Hitchcock, Manual of 

 the Grasses of the U. S., page 725. Annual, but self-seeding. Leaves 

 like a common Panicum, inflorescence like a Digitaria, and related to 

 neither, but to Andropogon, which it does not resemble, by organs that 

 are usually missing (secondary spikelet and its pedicel) ! 



Bromus inermis Leyss. A few specimens in Jamaica, Queens ; but seen in 

 great quantities further east on Long Island out of the city limits. July. 



Calamogrostis epigeios (L.) Roth. First collected Aug. 18, 1936, near 

 Maspeth, Queens. First seen at several stations in Astoria e.g. Vernon 

 Blvd. and Sanford St. In every case as a weed in dense showy colonies. 

 Hitchcock, page 319. 



Cenchrus tribuloides L. Plum Island, Marine Park, Brooklyn.- Nov. To- 

 gether with Cenchrus pauciflorus Benth. As prosperous as in the Atlantic 

 Highlands or Staten Island, thus completing the arc of distribution on 

 the land sides of the Lower Bay. 



Corynephorus cancsccns (L.) Beauv. South Jamaica. July. Hitchcock, 

 page 294. Still doing fine ; in an adventurous mood, it has crossed Cross 

 Bay Blvd. 



Hordeum jubattim L. Occasionally throughout, e.g. Sheepshead Bay, 

 Canarsie, Brooklyn ; Cornell Neck, Bronx. June. 



Panicum scoparium Lam. South of reservoir, Central Park ; Conselyea 

 Pond, Jamaica. July. Observed for a half dozen years at first locality. 

 The velvet panic grass is easily distinguished from other Panicums by 

 its pubescence which is velvety as in Holcus lanatus. 



Setaria ambigua Guss. Queens, e.g. Vernon Blvd. and 46th Ave., Long 

 Island City. Manhattan, in the cracks of pavements near sides of build- 

 ings. Sept. Hitchcock, page 699, as var. of .?. vcrticcllata. 



Setaria italica (L.) Beauv. Sporadically throughout the city, sometimes in 

 small coloriies. Aug. 



Cyperus Schzveinitcii Torr. Cross Bay Blvd., across Jamaica Bay, Queens. 

 Also at Plum Island, Brooklyn. June. 



