82 FLORA OF WASHINGTON AND VICINITY. 



UMBELLIFERiE. 



Parsley Family. 



Hydrocotyle ranunculoides, L. Water Pennywort. 

 Spriugy place above the Outlet Lock. May to July. 



t Hydrocotyle Americana, L. 

 July. 



tEryngium Virginianum, Lam. Eryngo. Button Snakeroot. 



September. 



Sanicula Canadensis, L. Sanicle. Black Snakeroot. 

 June. 



t Sanicula Marylandica, L. 

 Woodley Park. June. 



Erigenia bulbosa, Nutt. Harbinger-of-Spring. 

 High Island. Last of March or first of April. 



t Cicuta maculata, L. Spotted Cowbane. Musquash-Root. Water-Hemlock. 



Juue to July. 



tSium cicutaefolium, Gmel. ISimn linem-e, Michx.] Water-Parsnip. 

 September. 



tPimpinella integerrima, Benth. &, Hook. IZizia integerrima, DC] 

 Mfij to June. 



t Cryptotaenia Canadensis, DC. Honewort. 

 June. 



Osmorrhiza longistylis, DC. Sweet Cicely. 

 Last half of May. 



Osmorrhiza brevistylis, DC. 



High Island. Last week in May. 



t Chaerophyllum procumbens, Crantz. Chervil. 

 . First half of May. 



Discopleura capillacea, DC. Mock Bishop-weed. 

 Custis Spring. Third week in August. 



tThaspium barbinode, Nutt. Meadow-Parsnip. 

 June to August. 



t Thaspium aureum, Nutt. 



Higli Island. April; fruit in June or July. 



tThaspium trifoliatum, Gray. 

 April; fruit in August. 



Archangelica hirsuta, Torr. & Gray. 



July ; fruit in September. 



Pastinaca saiiva, L. Parsnip. 

 Georgetown. June. 



