{"product_id":"north-american-species-of-cactus","title":"North American Species of Cactus","description":"\u003cp\u003eIn the fall of 1890 Dr. George Vasey, then Botanist of the\u003cbr\u003e\nDepartment of Agriculture, arranged with me to prepare a revision\u003cbr\u003e\nof North American Cactaceae.  Owing to the peculiar difficulty of\u003cbr\u003e\npreserving material the family was poorly represented, even in\u003cbr\u003e\nour leading herbaria.  To secure a large amount of additional\u003cbr\u003e\nmaterial in the way of specimens and field notes the Department\u003cbr\u003e\nauthorized me to visit the region of the Mexican boundary during\u003cbr\u003e\nthe summer of 1891.  Preliminary to this exploration it was\u003cbr\u003e\nnecessary to examine the Engelmann collection of Cactaceae, in\u003cbr\u003e\nthe possession of the Missouri Botanical Garden.  This\u003cbr\u003e\ncollection, supplemented by the continual additions made at the\u003cbr\u003e\ngarden, is by far the largest collection of skeletons and living\u003cbr\u003e\nspecimens in this country, and also contains the large majority\u003cbr\u003e\nof our types.\u003c\/p\u003e","brand":"BooksWholesale","offers":[{"title":"Paperback","offer_id":44429992231073,"sku":"homegar155","price":26.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0462\/1120\/3233\/files\/1per4pw-front-shortedge-384.jpg?v=1718307804","url":"https:\/\/bookswholesale.myshopify.com\/products\/north-american-species-of-cactus","provider":"BooksWholesale","version":"1.0","type":"link"}