The Characeae of America. 



By Dr. T. F. ALLEN. 



PART II. 



FASICLE III.: CONTAINING DESCRIPTIONS AND ILLUSTRATIONS 



NITELLA LElBERGIl*. NOV. 



NITELLA MUCRONATA A. BR. 



NITELLA CAPITELLATA A. BR. 



NITELLA GRA CILIS (SMITH) AG. 



NITELLA TENUISSIMA (Dssv.) Coss. ET GERM. 



NITELLA TRANSILIS SP. NOV. 



NITELLA PYGMAEA A. BR. 



NITELLA MINUTA ALLEN. 



NITELLA INTERMEDIA NORDST. 



NITELLA ASA-GRAEANA SCHAFFNER. 



ISSUED APRIL, 1896. ^ 



