JSTOR

Isotype of Senecio cynthioides Greene [family ASTERACEAE] Metcalfe, O.B., #574 1903-08-23 United States

Isotype of Sida alata S.Watson [family MALVACEAE] Sida alata Pringle, C. G., #s. n. 1884-08-17 Mexico

Isotype of Sidalcea hydrophylla A.Heller [family MALVACEAE] Sidalcea hydrophylla Heller, A. A., #6047 1902-08-11 United States

Isotype of Siegesbeckia repens B.L.Rob. and Greenm. [family ASTERACEAE] Siegesbeckia repens Pringle, C.G., #4987 1894-10-16 Mexico

Isotype of Silene concolor Greene [family CARYOPHYLLACEAE] Silene concolor Metcalfe, O.B., #1482 1904-10-11 United States

Isotype of Silene pringlei S.Watson [family CARYOPHYLLACEAE] Pringle, C.G., #1190 1887-11-21 Mexico

Isotype of Sisyrinchium alatum Hooker var. angustissimum B. L. Rob. and Greenm. [family IRIDACEAE] Sisyrinchium alatum angustissimum Pringle, C. G., #4703 1894-06-22 - 1894-08-29 Mexico

Isotype of Sisyrinchium polycladum B.L.Rob. and Greenm. [family IRIDACEAE] Sisyrinchium polycladum Pringle, C. G., #4902 1894-09-11 Mexico

Type of Smilax pringlei Greenm. [family LILIACEAE] Smilax pringlei Pringle, C. G., #6843 1898-05-15 Mexico

Type? of Solidago confinis A. Gray [family ASTERACEAE] Solidago confinis Parish, S.B.; Parish, W.F., #1101 1882-07-01 United States

Isotype of Solidago helleri Small [family ASTERACEAE] Solidago helleri Heller, A.A.; Heller, E. G., #4188 1898-09-02 United States

Isotype of Sophia obtusa Greene [family BRASSICACEAE] Sophia obtusa Metcalfe, O.B., #1074 1904-07-01 United States

Isotype of Sorghastrum nudipes Nash [family POACEAE] Sorghastrum nudipes Pringle, C. G., #1433 1887-09-18 Mexico

Isotype of Sphaeralcea arizonica A.Heller [family MALVACEAE] Sphaeralcea arizonica Macdougal, D. T., #120 1898-06-16 United States

Isotype of Sphaeralcea lobata Wooton [family MALVACEAE] Sphaeralcea lobata Wooton, E. O., #2 1897-06-14 United States

Isosyntype of Spiranthes aurantiaca (Llave and Lex.) Hemsl. var. acuminata B. L. Rob. and Seaton [family ORCHIDACEAE] Spiranthes aurantiaca acuminata Pringle, C. G., #4280 1892-09-13 Mexico

Isotype of Spiranthes eriophora B.L.Rob. and Greenm. [family ORCHIDACEAE] Spiranthes eriophora Pringle, C. G., #4682 1894-05-31 Mexico

Isotype of Spiranthes oaxacana B.L.Rob. and Greenm. [family ORCHIDACEAE] Spiranthes oaxacana Pringle, C. G., #6101 1894-12-31 Mexico

Isotype of Spiranthes tenuiflora Greenm. [family ORCHIDACEAE] Spiranthes tenuiflora Pringle, C. G., #6995 1899-02-16 Mexico

Isotype of Sporobolus giganteus Nash [family POACEAE] Sporobolus giganteus Wooton, E. O., #394 1897-08-26 United States