120 BOTANICAL MAGAZIXK L Voi. xvm. 



Hob. Prov. Shinano : Karuisawa (T. Makino ! Sept. 1S8S). 



This grows in the boggy place in Karuisawa plain. It differs from 

 Scirpus fuirenoides Maxim. (Photogr. 3.) by the much denser panicle ; 

 smaller and more numerous heads ; not darkish viridescent spicuhe ; and 

 smaller ferruginous glumes; from S. Mitsukurianus Makino (Photogr. 2.) by 

 the smaller habit ; smaller and narrower leaves ; smaller stem ; smaller 

 and denser panicle; erect, radii; smaller and more numerous heads; more 

 loosely notched rachilla ; shorter and broader glumes ; shorter and stouter 

 seta? ; and larger caryopsis ; and from S. cyperinus K until and its varr. 

 Eriqphorurn, concolor, and Wichurai by the smaller habit ; less compound 

 and not effuse panicle ; larger and not solitary or not few-aggregate spicuke ; 

 much larger glumes ; and larger caryopsis. 



Scirpus (Silvatiae) cyperinus (Linn.) Kunth. 



a. normalis 0. Kuntze Kev. Gen. PI. II. (1891) p. 7.37. 



Eriophorum cyperinum Linn. Sp. PI. ed. 2, I. p. 77 ; Richt. Cod. n. 

 442 ; Willd. Sp. PI. I. p. 313. 



Scirpus cyperinus Kunth Enum. PI. II. p. 170 ; Britt. et Br. 111. PI. 

 N. Un. St. et Can. I. p. 271, fig. 636. 



Trichophorum cyperinum Pers. Syn. PI. I. p. 69, excl. syn. Michx. 



Eriophorum cyperinum var. laxum Wats, et Coult. in A. Gray, Man 

 Bot. ed. 6, p. 582. 



Scirpus Eriophorum var. cyperinus A. Gray, Man. Bot. ed. 2, p. 501, 

 et ed. 5, p. 565. 



Scirpus Eriophorum [i. Boeck. in Liniuea XXXVI. p. 732. 



Scirpus thyrsiflorus Willd. herb. n. 1241, fol. 4, ex Kunth 1. c. 



Hab. North America. 



0. Eriophorum (Michx.) 0. Kuntze I.e.; Britt. 'in Trans. X. Y. Acad. 

 Sc. II. (1892) p. 82'; Britt. et Br. I.e. 



Scirpus Eriophorum Michx. PI. Bor. Am. I. p. 33; Kunth Enum. 

 PI. II. p. 170 ; Boeck. in Linnaaa XXXVI. p. 731 ; Poem, et Schult. Syst, 

 Veg. II. % p. 147, excl. syn. ; A. Gray, Man. Bot. ed. 5, p. 565. 



Eriophorum cyperinum Vahl herb, ex Kunth 1. c. 



Scirpus thyrsijlwus Willd. herb. n. 1241, fol. 1-3, ex Kunth I.e., et 

 Enum. PI. Hort. Bot. Berol. p. 78, excl. syn. 



Panicle decompound, copiously spiculose. Spicuhe 1-4-aggregate, 

 globoso-ellipsoid, 3-4 mm. long. Seta; sometimes not enlarged above and 

 not scabrous or obscurely so (as in those of the American form), but usually 

 slightly enlarged and serrato-scabrous above. 



