APPENDIX 1323 



Page 169, after Cyperus Haspan, insert: 



32a. Cyperus alternifolius L. Perennial by long rootstocks. Leaves without 



blades: scapes 0.5-2 m. high, often tufted: bracts of the involucre numerous, pliable, 



elongated-linear, spreading or slightly drooping: umbel compound, the longer rays 



2.5-9 cm. long or more: spikelets ovate to linear-oblong, 1.5-2.5 mm. wide; scales 



spreading: achenes obovoid, about 0.8 mm. long, brown. — Differs from C. Haspan in 



the numerous involucral bracts, the larger spikelets and the larger brown achene. 



In the Everglades, east of Naranja, Florida. Also in tropical America. Naturalized 

 from Africa. Umbrella Plant. 



Page 170, after Cyperus speciosus, insert: 



44a. Cyperus longispicatus Norton. Perennial. Leaves much overtopped by 

 the scape; blades 1-2 cm. wide, or sometimes narrower: scape erect, mainly 1-2 m. 

 tall, smooth: bracts of the involucre several, 1 cm. wide, often 1 m. long: umbel 

 compound; rays 15 cm. long or less: spikes mainly 2-3 em. long: spikelets 2-4 cm. 

 long, slender, 20-40-flowered, light yellowish brown; scales ovate, short-tipped, nerved 

 between the green back and membranous margins: achenes 3-angled, obpyramidal, 

 about 1 mm. long, light brown, abruptly pointed. — Differs from C. speciosus in the 

 pale spikelets and thick rigid scales. 



In water or low grounds, Florida to Texas and Mexico. Spring to fall. 



Page 172, after Cyperus retrorsus, insert : 



56a. Cyperus PollArdl Britton. Perennial by small corms. Leaves shorter 

 than the scape; blades usually less than 3 mm. wide: scapes 6-13 dm. tall, smooth: 

 inflorescence of few unequally peduncled heads: bracts of the involucre usually 4, 

 one or sometimes two of them surpassing the heads: spikelets 3-4.5 mm. long, the 

 scales loose, or deciduous at maturity: achenes linear-oblong, about 1.5 mm. long. — 

 Differs from C. retrorsus in the cylindric or oblong heads. 



In pine woods and on prairies, peninsular Florida. Spring to fall. 



56b. Cyperus Nashii Britton. Perennial, mostly tufted. Leaves shorter than 

 the scape; blades less than 4 mm. wide: scapes 4^11 dm. tall, smooth: inflorescence 

 of numerous (15-20) slender-peduncled heads: bracts of the involucre typically 7-11, 

 several of them surpassing the heads: heads 1 cm. long or a little less, often com- 

 pound : spikelets rather crowded, 2-3 mm. long, acute, the scales appressed, persistent : 

 achenes linear or nearly so, 2 mm. long. — Differs from C. Pollardi in appressed scales 

 of the spikelets. 



In pine lands, peninsular Florida. Spring to fall. 



Page 176, in second line of key under Scirpus strike out "or rarely 2 in No. 5," 

 and add ' ' smooth ' ' after ' ' perianth-bristles ' ' in the last line. 



Page 177, after Scirpus Clintonii, insert: 



3a. Scirpus subterminMis Torr. Perennial, aquatic. Scapes slender, 1 m. tall 

 or less, terete, nodulose: leaf -blades often i as long as the scapes or more, slender, 

 channeled: spikelet solitary, terminal, oblong to ovoid, 6—13 mm. long, several- 

 flowered, subtended by a subulate erect involucral bract: scales greenish brown or 

 straw-colored, with a green midrib, acute: perianth-bristles mostly 6, downwardly 

 barbed, as long as the achenes or shorter : stigmas 3 : achenes obovoid, 2 mm. long, 

 sharply 3-angled, abruptly beaked. — Differs from S. Clintonii in the long involucral 

 bract and the downwardly barbed perianth bristles. 



In ponds and streams, Newfoundland to British Columbia, South Carolina and Mis- 

 sissippi. Summer. 



Page 187, after Fimbristylis DrummondU, insert: 



4a. Fimbristylus diphylla(Eetz.) Vahl. Perennial, pubescent. Leaves pliable; 

 blades about 2 mm. wide or less, involute, the sheaths copiously pubescent: scapes 

 slender, 3-6 dm. tall, sparingly pubescent, much exceeding the leaves: bracts of the 

 involucre usually 4, elongated: umbels compound, the rays unequal: spikelets oblong 

 to ovoid-oblong, 5-11 mm. long: scales thin, pale, oval to ovate, glabrous, abruptly 

 pointed: stigmas 2: achenes broadly obovoid, about 1 mm. long, pale, longitudinally 

 ribbed and cancellate, abruptly pointed. — Differs from the related species in the 

 longitudinally ribbed achenes. 



In low grounds and on moist banks, Georgia and Florida. Also in the tropics generally, 

 whence naturalized. 



