I 



I 



I 



m 





\ 



57 



the staminate portion about half an inch long; main bract leafy 

 and very much prolonged (afoot or more in length); pcrigynium 

 lanceolate in outline, not trigonous, divaricate and much bent, 

 provided with two or three prominent ribs and a few intermedi- 

 ate nerves, produced into a slender and sharply short toothed 

 beak about half the length of the body and somewhat rough on 

 the margins ; all the scales conspicuously lacerate-awned, those of 

 the staminate portion more or lessapprcssed,the pistillate divaricate 

 and about the length of the perigynium. {loja). Pansamala, 



Department of Alta Verapaz, Guatemala, altitude 3,800 feet, H. 



von Tilrckheiin^ 659 ; communicated by John Donnell Smith. 



The plant is abnormal in one respect, the top of the culm being 



fasciated, rendering the head of spikes very short and compact. 



The perigynia, however, and particularly the awned and lacerate 



staminate and pistillate scales, designate it from all other species 



with which I am acquainted. The perigynium of C, melanosperma 



IS smaller, straighter, and much shorter-beaked, the beak entire 



or oblique, and is less prominently nerved (See No 94). 



80. — Carex rosea, Schkuhr, var. retroflexa, Torr. Monogr. 



389 (1836). 



C. retroflexa, Muhl. Willd. Sp. PL iv. 235 (1805), v. s. Hb. 



WiUd.; Boott, 111. t. 226 (i860). 

 C, bicostata, Olney, Exsicc. fasc. iv. No. 17 {}^Ti) v. s, 

 New England to Pennsylvania and westward through New 



York. 



M 



retrofli 



M 



narrowly lanceolate, longer beaked than in the last, much more 

 conspicuously spreading or reflexed. Mt. Carmcl, S. Illinois, 

 Schneck, and from Alabama to Texas. 



81. — Carex ECHINATA, Murray, Prodr. Stirp. Getting. ^6. 



(1770.) 



The type of this species does not occur in the Eastern Uni- 

 ted States so far as I can determine. Specimens from the Pacific 

 slope appear to be the same" as the European plant, yet more 



r 



material is needed to warrant a definite reference. American 

 varieties of this species may be defined as follows: 



