1924 



* HEUCHERA cylindiacea. 



Cylindrical Heuchera. 



PENTANDRIA DlCYi^lA. 



Nat. ord. Saxifragace*. 

 HEUCHERA.— Supra, vol. \5.foL 1302. 



H. cylindrica ; scapo omnin6 nudo petiolisque patentim hirsutis, foliis cordatis 

 alt^ rotundato-lobatis crenatis ciliatis dentibus piliferis supra glabriusculis 

 subtus ad venas praeeipue pilosis, paiiicula compacta cylindracea subspicata, 

 floribus apetalis, staminibus inclusis. Hooker Fl. Bor. Amer. 1. 230. 



This new species of Heuchera is distinguished from the 

 remainder of the genus, both by its very contracted panicle, 

 and by its flowers being destitute of petals. 



It is a hardy herbaceous plant, thriving in any kind of 

 light soil, and flowering in May. 



Mr. Douglas found it in the north-western part of North 

 America, in dry mountain woods, near the Kettle Falls. The 

 accompanying drawing was made in the Garden of the 

 Horticultural Society. 



Fig. 1. is a magnified flower, with a portion of the calyx 

 cut away ; Fig. 2. is a vertical section of the ovary, exhibiting 

 the position of the ovules. 



Saxifragaceous plants are generally described as destitute 

 of stipules ; those organs are however visible enough in the 

 genus Heuchera. 



* See folio 1302. 



