. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . 1 <5 4—t as » t I EXP ft it•t,,,*«.. U jp nil Inli/rrma Iht u d/iuM«— Art WUk oal .„ nyn^/lladt Art My Ml mm hn, „,„._\„,A,„ »/„„, /!,„tralh^Unt — Xt» Mtsuan Yd. I A * * * , 1 U* No. 3. DESCRIPTION OE THE CACTACBJ1. BY GEORGE ENGELMANN, M. D., OF ST. LOUIS, AND JOHN M. BIGELOW, M. D. MAMILLARIA, Haw. I. Etjmamillaria. Englm. in Synops. Cact. 1. Mam. Wrightii, Englm. in Rep. of Bound. Com.: Flowers and fruit were unknown untilsp
. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean . 1 <5 4—t as » t I EXP ft it•t,,,*«.. U jp nil Inli/rrma Iht u d/iuM«— Art WUk oal .„ nyn^/lladt Art My Ml mm hn, „,„._\„,A,„ »/„„, /!,„tralh^Unt — Xt» Mtsuan Yd. I A * * * , 1 U* No. 3. DESCRIPTION OE THE CACTACBJ1. BY GEORGE ENGELMANN, M. D., OF ST. LOUIS, AND JOHN M. BIGELOW, M. D. MAMILLARIA, Haw. I. Etjmamillaria. Englm. in Synops. Cact. 1. Mam. Wrightii, Englm. in Rep. of Bound. Com.: Flowers and fruit were unknown untilspecimens brought from the Pecos flowered in Washington. From these the following descrip-tion was drawn: Sepalis exterioribus triangularibus obtusiusculis fimbriatis sub-13, interioribus marginepetaloideis acutis sub-8, petalis (purpureis) lanceolatis acuminatis aristatis sub-12; bacoasuccosa majuscula purpurascente floris rudimentis coronata ; seminibus obovatis basi acutis scro-biculatis nigris. (PI. I.) I am not certain whether the flower is actually lateral and thegermen immersed, whether, therefore, this species actually belongs to the true Mamillarice, orto the subgenus Goryphantha; I am, on the contrary, inclined to consider at least the germenimmersed. I, nevertheless, think it best to leave this species with thereportsofexplora04unit_0
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