188 T. Holm — Studies in the Gyperacece. 



Art. X. — Studies in the Cyperacce; by Theo. Holm. 

 XXXIII. Carices aeorastachyce: Macrochcetce nob. 

 and Nesophilce nob. (With 12 figures drawn from 

 nature by the author.) 



Among the tristigmatic sections of the Aeorastachyce 

 the Macrochcetce comprise only a few species, viz. G. 

 macrochceta C. A. Mey., G. flavocuspis Franch. et Sav., 

 G. gansuensis Franch., and G. scita Maxim. 



G. macrochceta^ 



For many years this species has passed for G. podo- 

 carpa R. Br., as stated in a previously published paper. 1 

 C. A. Meyer described the species, 2 and has given an 

 excellent figure of it; some parts of the diagnosis may 

 be reprinted here inasmuch as, after all, the original 

 diagnosis is the most important : 



'•'Carex spica raascula solitaria, femineis binis distantibus 

 pedunculatis fructiferis subnutantibus, stigmatibus tribus, 

 perigyniis laevibus compressis oblongo-lanceolatis acutis ore 

 integerrimis, gluma aristata brevioribus, bracteis foliaceis amplec- 

 tentibus. . . . Folia floralia basi auriculato-amplectentia (nee 

 vaginata) ; innmum culmi partem superiorem excedens, superius 

 setaceo-filiforme spica duplo triplove longius. . . . Glumae 

 masculae et f emineae oblongae, acutae, carina setaque longissima 

 scabra flava instructae ; caeterum piceae et margine omnino con- 

 colores. . . . Perigynium obsolete nervosum, basi flavescens, 

 apice piceum, glnmarum seta multo brevius. . . . Stigmata tria, 

 rarissime duo. ' ' 



The species is aphyllopodic, and remarkably constant 

 in its habit, inflorescence and flowers. The terminal 

 spike is usually staminate, but in a few specimens from 

 TJnalaska this was either androgynous, gynsecandrous or 

 even entirely pistillate. The number of lateral spikes 

 varies from one to four; our material, representing 

 sixty one specimens, showed : 



1 This Journal, vol. 48, p. 17, 1919. 



2 Cyperacese novas descriptionibus et iconibus illustrate. (Mem. Savants 

 Etrangers, St. Petersbourg ; vol. 1, p. 30, 1831.) 





