152 CACTUS FAMILT. 



M. Lindieyi. Cultivated, from California, usually under the name of 

 Bart6xia AtiRKA. Plant l°-2° high, with leaves lancc-ovate in outline 

 and deeply pinnatifid, their lobes linear ; flowers with 3 obovato and pointed 

 bright yellow petals opening in sunsliinc, and the very numerous filaments all 

 slender, © 



M. ornita, the Bart6nia obnXta of Kuttall, a very large-flowered 

 speeies, of the plains of Nebraska and S. : 2° -4° high, with oblong-lanceolate 

 sinuate-pinnatifid leaves, and white fragrant flowers opening at sunset or on a 

 cloudy afternoon, Ifeafy-bracted under the ovary, and with 10 lanee-ovate or 

 spatulate acute petals, about 2' long, the 5 inner narrower, and the 200-300 

 filaments all slender ; seeds very many and flat. Rarely cult, for ornament, 

 but well worthy of it. ® -^ ? 



M. ntlda, the Bakt6nia nijnx of Nuttall, of the same district and further 

 south, and less rare in cultivation than M. ornata, resembles it, but has flowers 

 of half the size and often without leafy bracts under the ovary ; outer fila- 

 ments mostly broadened ; seeds wing-margined. ® iZ ^ 



§ 3. EucsiDE of Zuccarini Pod short, containing veri/ many minute roundish 

 or Monij seeds : flowers showy, yellow, opening in bright sunshine. 



M. Idngipes. Cult, from Mexico and Texas under the name of EuckIdb 

 BARTONioiDES ; a tender succulent plant, branching and usually spreading on 

 the ground, bristly, with ovate cut-toothed or sliglitly lobed leaves on slender 

 petioles, and flowers mostly on still longer simple peduncles (3' - 6' long), the 

 5 ovate petals and very many slender filaments fully 1' long. @ 



2. BLUMENBACHIA. (Named for the distinguished German physiol- 

 ogist, BlUmenbach. Includes Caiophora. F1. all summer. 



B. iusignis. Cult, from Chili ; rather curious than ornamental, with 

 palmately about .5-parted leaves, small flowers with white petals and yellow 

 red-tipped inner appendages ; the pod obovate, slightly twisted, with 5 strongly 

 projecting placentte. ® 



B. lateritia. Cult, from South America, under the name of LoXsA or 

 Cai6phoea i-ATERfTiA ; climbing fi-eely ; with pinnatifid or pinnate leaves of 

 5 or more lance-ovate divisions or leaflets, which are cut-toothed or some of 

 them a^ain pinnatifid ; flowers almost 2' across, with brick-red petals ; the long 

 pod at length much twisted. ® 



49. CACTACEjE, cactus FAMILY. 



Fleshy plants of peculiar aspect, mostly persistent, destitute of 

 foliage (with exception of the rare Pereskia), its place supplied by 

 the green rind of the flattened, columnar, globular, or various-shaped 

 stem ; the perfect solitary and sessile flower with calyx adherent to 

 the ovary, its lobes or sepals, the petals, and the stamens numerous, 

 usually in several ranks, the latter mostly very numerou.s ; ovary 

 1-celled with several parietal placentse ; style sin^gle, -with several 

 stigmas ; the fruit a 1 -celled and generally many-seeded pulpy berry. 

 (See Lessons, p. 48, fig. 76, and p. 96, fig. 197.) 



We have three or four wild species, several others in common 

 house-cultivation, and a larger number in choice collections, some 

 of which are hybrids. 



§ 1. No tube to thefiower above the ovary: stem jointed. 

 1. OPUNTIA. Stem branching, formed of successive .joints, which are mostly 

 flat, bearmg at first some minute awl-shaped bodies answering to leaves, 

 which soon fall off, and tufts of barbed bristfes and often prickles also in thei; 



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