SCIENTIFIC AND POPULAR. 355 



1896. SPIRAEA, L. Spiraea, Meadow-Sweet, etc. Rosaceae. 

 Latin from the Greek name, 'twisted" alluding to the fol- 

 licles. Sjn. Filipendula, Tourn. Low or tall shrubs, many 

 ornamental. About 60 species, north temperate zone: 11 in 



U. S. 



a. S. Filipendula L. (F. vulgaris Moench). Europe. Dropwort, 



Droop wort. 



b. S. hypericifolia L. Europe and Siberia and cult, in gardens. 



Bridal- wreath, May-wreath, Italian May, St. Peter' s- wreath. 

 Flowers astringent. 



c. S. salicifolia L. Northern Asia, Europe and N. America, 



south to Georgia and Missouri. Common Meadow-sweet (of 

 America), Willow-leaved Meadow-sweet, Bride-wort, Quaker- 

 lady, Queen-of-the-meadow* Queen' s-needlework. Mock Wil- 

 low, Spice Hardback. 



d. S. tomcntosa L. Canada, south to Georgia and Kansas. Hard 



hack. Steeple-bush, Purple Hardback, Spice Hardback, Horse- 

 weed*, Pink Meadow-sweet, Meadow-queen, Poor- njan's- soap, 

 Kosy-bush, Silver-leaf, Silver- weed. White-cap, White-leaf, 

 Spiraea. Bark and leaves astringent. 



1896. SPIRODELA. Schleid. Duckweed. Lemnaeeae. 

 From Greek. Syn. Lemna, in part. Minute floating plants. 



Two species; 1 in tf. S., viz. (a) S. polyrhiza (L. ) Schleid. 

 ( L. polyrhiza L. ), Greater Duckweed. 



1897. SPIR6sTACHYS, Wats. Spirostachys. Chenopodiaceae. 



Fleshy, nearly leafless plants. About 3 species, two of South 

 America, one of western U. S. 



1898. SP6nDIAS, L. Hog Plum, etc. Aiiacardiaceae. 



From Greek name of a kind of Plum. Trees, some producing 

 edible fruit. About 5 species, tropical regions of both hemi- 

 spheres. 



a. S. diilcis G. Forst. (S. lutea Royen, S. acida Blume, S. fragrans 



Pav. ). Fiji and Society Islands and commonly cult, in tropi- 

 cal countries. Vi tree, Rewa. Fruit, Vi-fruit, Vi-apple, 

 Tahiti Apple, acidulous, esculent. 



b. S. llitea L. (S. myrobalans L., S. Mombin Jacq., not L.). 



Tropical America. Jamnica Plum, Hog Plum, Golden Apple. 

 Flower buds used for a sweetmeat. Fruit laxative, esculent. 



1899. SPRAGUEA, Tor. Spraguea. Portulacaceae. 



Herbs closely related to Claytonia. Four species in western 

 U. S. 



^900. STACHYS, L. Hedge-Nettle, Woundwort. Labiatae. 

 Ancient Greek name of a species having "spiked" inflores- 

 cence. Annual or perennial herbs. About 150 species, mostly 

 of north tempera/e zone; 24 in U. S., including some naturaliz- 

 ed species; Ger. Ziest; Fr. :6piaire; Sp. Yerba de la feridura. 



