OPUNTIA. 



I6l 



from 



Mountains, Arizona, taken by Dr. MacDougal; figure 200 



from the collection made by Professor J. W 

 MacDougal in 1902. 



E 



1S96. 



This 



George, southwestern Utah, 



E. W. Nelson made 



but the only shrubby, juicy-fruited species which he collected has brown spines and brown 

 dochids, which would seem to exclude it from 0. palmcri. It is not at all unUkcly that 



pa 



specimens from 



ii 



1896. 



■\ 



t 



Loosely few-branched, i to 2 meters high, but in cultivation often forming a low, dense bush ; 



joints obovate to oblong, 1.5 to 3 dm. long, hght green, often spineless but usually with a few (i to 3) 

 short spines i cm. long or less at the areoles of the upper part of the joint; areolcs rather distant, 

 small; flower large, 6 to 7 cm. broad; petals lemon-yellow, sometimes tinged with red, broad, and 

 obtuse or retuse; filaments and style short, pale yeUow; stigma-lobes green; ovary turbinate, more 

 or less tuberculate, at first leafy, often bristly at top; fruit obovoid, 5 to 7 cm. long; seeds 4 to 5 mm. 

 broad. 



Type locality: In Arizona. 



Distribution: In the mountains about Tucson, Arizona. 



Referred by Professor Schumann to 0. inermis [0. strida), but it is not that species. 



Illustrations: Ariz. Agr. Exp. Sta. Bull. 67: P^ 8, f. i; N. Mex. Agr. Exp. Sta. Bull. 



72: pi. I ; Plant World n^": f. 5. u u r^ at 



Plate XXVIII, figure i, represents a flowering joint of a plant brought by Dr. JVlac- 



from 



- ( 



stricta 



I8I2. 





Cactus opuntia inermis De CaiidoUe, PI. Succ. Hist. 2: pi. 138 [C]. 1799- 

 Cactus strictus Haworth, Misc. Nat. 188. 1803. 

 Opuntia inermis De Candolle, Prodr. 3: 473- 1828. 

 Opuntia airampo Philippi, Anal. Univ. Chile 85: 492. i894- 

 Opuntia parva Berger, Hort. Mortol. 411. 1912. 



g^::S SS?SS5;^^i;^oS" S « "^ "• .^^ (according . de.H..U^ and iHustrati^ 



Bushy, low. spreading plants, sometimes forming large clumps, f ^dom over 8 dm. ^igj^ J^mts 

 obovate to oblong: usually 8 to 15 cm. long, but sometimes much ^^"g^ted and ^^en 3^ cm^^ong 

 or more, green or bluish green, glabrous, often spineless especially m £^^^"^ ^"^^/PJ^^^^^^te 

 times but d spine or two on a joint, at other times spines more ^^bundant leav es stout subulate 

 3 to 4 mm. long; areoles distant, the wool brownish, the glochids short fP^"^!' ^^^^^" P^^J^,^[' IJ^w 



I or 2 from an areole, stiff, terete, yellow, i to 4 ^"^-J^^f^^^^'^^^^.t white sUemk-Ces S^ 

 broad, obtuse, apiculkte; filaments yellow to greenish; style usually ^^^^^i^f f^"^^ ?,^^^^^^ 

 white but sometimes greenish; fruit purple, usually broadest at top, tapenng to a slender Dae, 



4 to 6 cm. long, with a more or less depressed umbilicus. 



Type locality: Not 

 Distribution: Western 



Distribution: Western Cuba; i<ioriaa lu buutiiv^xxx ..^^^. Weber 



Opuntia vulgaris balearica Weber (Diet. Hort. Bois_894. ^?98) ^ SJ" ^y We^^^ 

 a synonym of O inermis; Opuntia balearica Weber (Hirscht, ^^f ^^^'^ ^^^^^^^ 

 175' is/s) has also been used, but not ^^^^r^^'J^^^f^Xt'^ was th, 



i»9«; has also been usea, dul nut uo^x.— , - A,^iPnVa 



This species is often cu.tiv-ated on the wes coast o S t A ™ 



given the name O. airampo by Dr. i^nnippi, wuu o^i^t'^^ 



vians, a native species, quite different from this one. o^.^ndnnd It has now run 



This species is the pest pear of New South Wales and Q^.^^"^^^^^^^^^ the interior of 

 wild_ove^dio^^ 



*Berger (Hort. Mortol. 4". 1912) gives the date 1797- 



