Index to Pollen and Nectar Sources 2723 



spicata, Vernonia 2139 



spicata, Veronica 1867 



spicatum, Epilobium 1755 



spinosa. Aster 2173 



spinosa. £>a/ea... 1873, 1910, 1920, 1984, 2024, 



2074, 2173(2), 2174 



spinosa, Eysenhardtia 2152 



spinosa, Koeberlinia... 1771, 1942, 2173, 2174, 2185 



spinosa, Tetradymia 1755 



spinosissimus, Carduus 2183 



spinosus. Aster...lM3, 1944, 2053, 2070, 2142, 



2147, 2148, 2152, 2160 

 spinulosus, Aplopappus... 18S1, 2117, 2144, 2148, 



2151 



spinulosus, Aster 2145 



spinulosus, Haplopappus 1870, 1901, 1944, 2150 



Spiraea... 1762, 1799, 1800, 1806, 1809, 1810, 1820, 

 1821, 1823, 1825, 1827, 1829, 1830, 1837, 

 1840, 1841, 1842, 1843, 1844, 1951, 2052, 



2054, 2178 



alba 2151 



aruncus 1799, 1828, 1836, 1839, 1840 



densiflora 1756,2068 



discolor 1837 



latifolia 1836, 1837, 1840(2) 



prunifolia 1777, 1819 



sorbifolia 1837(2), 2015, 2182 



thunbergii 1755, 1808, 1828 



vanhouttei 1755, 1799, 1828, 1843, 2178 



spiralis, Camissonia 1790 



Spiranthes 



gracilis 1867 



splendens, Caloch.ortus...llG5, 1847, 1886, 1928, 

 1929, 1930, 1931, 2034, 2075, 2118 



splendens, Fouquieria 2029, 2185 



splendens, Gilia 1938 



splendens, Lathyrus 1987, 2053, 2164 



splendida. Cassia 2187 



Spraguea 



umbellata 1797, 1833, 1860, 2048, 2053 



squamatum, Lepidospartum... 1751, 1753, 1764, 



1891(3), 1894, 1907, 1908, 1928, 1944, 



1995, 2051, 2134, 2164, 2184, 2185 



squamosa, Hagardia 2150 



squarrosa, Grindelia...ll5l, 1779, 1869(2), 1895, 



1896(2), 1902, 1944(2), 1945, 2025, 2055, 



2064, 2066, 2067, 2134, 2144, 2146(2), 



2147, 2148(2), 2149(2), 2151(2), 2154(3), 



2155, 2167, 2180 



squarrosa, Hazardia 2180 



squarrosa, Lacinaria 2147 



squarrosus. Haplopappus... 2008, 2025, 2026, 2066, 



2070, 2164 



stachyoides. Salvia 1767, 2181 



Stachys...ll25, 1800, 1948, 2017, 2043, 2051, 



2054(2), 2067, 2075, 2127(2), 2129, 2159, 



2178, 2184, 2186(2) 



ajugoides 1994, 2142, 2182, 2184 



albens 1989, 2073, 2184 



apargioides 2140 



bigelovii 1943 



bullata 1989, 2142, 2164, 2182 



californica 2016,2164 



floridana 2143, 2177, 2178 



palustris 1867, 2139, 2165 



pycnantha 1989, 1994, 1996, 2073 



Stachytarpheta 2116 



staechadifolium, Eriophyllum 1750, 1762, 2181 



Stanleya 1886, 1951, 2129 



pinraata... 1761(2), 1764, 1767, 1805, 1812, 



1813, 1815, 1816(2), 1841, 1847, 1906(2), 



1917(2), 1925(3), 1931, 1942, 2015, 2016, 



2018, 2052, 2054, 2160, 2169, 2180, 2184, 



2185, 2186 



stansburiana, Cowania 1908, 1927, 1930, 2179 



Staphylea 1776, 1800, 1805, 1838 



Statice 2126 



staticoides, Chorizanthe...l901, 1908, 1988, 2010, 

 2017, 2026, 2030, 2153, 2179 



Steironema 1981(2) 



Stellaria...liei, 1777, 1800, 1806, 1817, 1831, 

 1867, 1950, 1951, 2032, 2049, 2128, 2178 



crispa 2042 



longipes 1999 



media 1810, 1818, 1823, 2182 



pubera 1842 



stellata. Coreopsis 2053, 2056, 2068, 2071 



stellata, Smilacina 1797 



Stemodia 2027,2043 



Stenanthium 1761 



stenolobus, Solidago 2153 



stenopetalum, Sedum 1854, 2010, 2027 



Stenophragma 



thaliana 1842 



stenophyllus, Chrysothamnus 1764 



stenophyllus, Erigeron...n&5, 2017, 2025, 2051, 

 2052, 2053, 2070, 2149, 2164, 2179, 2181 

 Stenotopsis 



linearifolius...ll95, 1937, 1938, 1989, 1990, 



2010, 2016, 2034(2), 2035(2), 2180 



Stephanomeria... 1813, 1887, 1900(2), 1918, 1927, 



1951, 2008, 2027, 2029, 2153, 2167 



californica 1998 



chichoriacea 1998 



cichoriacea 1994, 1996, 2180 



exigua... 1751, 1900(2), 1914, 1927, 1928, 1944, 



1987, 1995(2), 1996, 1999, 2025, 2026, 



2051, 2052, 2066, 2135, 2140, 2142, 2150, 



2155(2), 2162, 2164, 2166, 2168 



exigua var. coronaria 1900 



pauciflora...lW13, 1900, 1927, 1928, 2024, 



2164, 2168 



virgata... 1900, 1944, 1994, 1995, 1998(2), 2051, 



2052, 2068, 2117, 2142(2), 2155, 2164, 



2166, 2168, 2180(3), 2182 



stevioides, Chaenactis... 11 50, 1913, 2023, 2062, 



2075, 2151, 2179 

 stevioides var. brachypappa, 



Chaenactis 1920, 1930 



Stillingia 



paucidentata 1914 



sylvatica 1874 



stipulacea, Gillenia 1867 



stiversi, Lupinus 2048 



Stokesia 1951, 2007, 2069 



laevis 2178 



stolonifera, Cornus 1799(2) 



Streptanthus 2036 



