122 FLORA OF WASHINGTON AND VICINITY. 



tPolygonatum biflorum, Ell. Smaller Solomon's Seal. 

 Middle of May. 



Polygonatum gigaiiteum, Dietricli. Great Solomon's Seal. 

 Middle of May. 



tSmilacina racemosa, Desf. False Spikenard. 

 Last half of May. 



tSmilacina stellata, Desf. 



Foniid on High Island May 17, 1874, in flower ; not seen there since. Month of 

 Difficult Run, July 5, 1879, in fruit. Of the many plants seen at this last date, one 

 berry, and only one, was found on each plant ; no others appeared to have matured. 



tMaianthemum Canadense, Desf. (See Proc. Am. Acad., vol. siv, p. 246.) ISmila- 

 cina bifolia, Ker., var. Canadensis, Gray.] 

 Carroll Estate; rare. Said to have been formerly found on Piney Branch. Mid- 

 dle of May. 



Asparagus officinalis, L. 



Escaped from cultivation. June. 



tLilium superbum, L. Turk's-cap Lily. 

 Last week in July. 



tErythronium Americanum, Smith. Yellow Adder's Tongue. 

 First half of April. 



Erythronium albidum, Nutt. White Dog's-tooth Violet. 

 High Lsland and above. First half of April. 



t Uvularia perfoliata, L. Bellwort. 

 First week in May. 



tOakesia sessilifolia, Watson. Proc. Am. Acad., vol. xiv, p. 269. [ UvnJaria sessili- 

 folia, L.] Sessile-leaved Bellwort. 



Last of April or first of May. 



1 Medeola Virginica, L. Indian Cucumber. 



Upper, and sometimes lower whorl of leaves colored brilliant crimson at fruiting- 

 time (to attract birds?). Last of May; fruit, end of September. 



TriUium sessile, L. Three-leaved Nightshade. 

 High Island and above.' April ; fruit in July. 



tMelanthium Virginicum, L. Bunch-flower. Black flower. 

 Reform School ; Woodley Park. Third week in July. 



tVeratrum viride, Ait. American White Hellebore. 



Rock Creek ; Falls Church. Not coDimon. Third week in May. 



t Stenauthium robustum, Watson. Proc. Am. Acad., vol. xiv, p. 278. 

 Near Bladensburg, July 20, 1879. 



t Chamaelirium Carolinianum, Willd. [C. lutcum, Gray.] Devil's-bit. Blazing 

 Star. 

 Many of the plants sterile, having rosettes of leaves only ; these persist throughout 

 the winter unless very severe. End of May. 



