436 102. characejE. 



smooth not spinous, last 1 — 3 joints ofhranchlets without external 

 tubes, bracts on the inner side of the branchlets about as long as 

 or longer than the oblong nucules. — Atl. Ft. Par. 38 C. C. Hed- 

 wigii E. B. S. 2762. C. pulchella E. B. S. 2824.— Slender, green 

 and remaining so through the winter, not incrusted. Nucule 

 with 13 or 14 striae and a long crown, with the globule. Bracts 

 usually shorter than the nucules, one equalling them ; or all 

 longer. — Stagnant water. A. VI. — VIII. E. 



" Quanquam multas observarerim plantas et sedulo quidem, 

 tamen non confido me semper veritatem invenisse." — Link, 

 Philos. Bot. iv. 



