715 



a.s follows: "Related to O. Dillenii 

 and O. Tuna and growing with them- 

 Stems ascending, often forming dense 

 clumps; joints various, linear-oblong 



t> v>r Q t r,ftan * rim i mi P- 10 in 



5 

 cm. wide, olive-green, slightly lus- 



trous, more or less crenate, about 1.5 



nr^nip.5- 

 cm. thick, knobbed at the areoles, 



areoles distant, nearly 1 cm. broad, 

 white-velvety; glochides numerous, 

 yellow. 6 mm. long- or less, mostly borne 

 at the upper margins of the areoles; 

 spines 3-8 at each areole, light-yel- 

 lew. flattened on the upper side, sub- 

 ulate, straight, often somewhat 



twitpri thp inne-pr nnps 1? r>m lone- 



on / 

 or less; flowers yellow, 7-8 cm. broad; 



stamen:-- about half as long as the 



rc, nar>riv rvirrifnrrn A. ^ 



> 

 cm. long, its upper areoles bearing 



1-3 sublate nale-yellow spines 2.5 

 cm. long. or less, which are some- 

 times persistent on the fruit; berry 



rv>iforrr r ,-6 cm lone 2-3 cm. in 

 ,m. long 4 , r in 



diameter. Grand Turk (Nash & Tay- 

 lor, 3834. type; 3833 3841). O. Dill- 

 cr ; ,i nas stouter, shorter, dark-yellow 

 or vellow-brown spines. O. Tuna has 

 ch shorter near,y terete spines." 

 OPUNTIA PALMERI Engelm. 



"Joints oval, smooth (not tuberculated), 

 pale glaucous. 20-25 cm long by 15-20 cm 

 bro<ad; pulvini 2.5-3 cm apart, with pale 

 brownish or gray persistent wool, a few 

 very slender straw-colored bristles, and 

 slender flattened or compressed straw* 

 colored spines 2.5-3 cm long (5-7 on upper 

 pulvini with pome smaller additional 

 ones. 1--8 on lower rulvini), erect or 

 PT reading, or the upper ones (from upper 

 part of pulvinus) mostly deflexed. Type, 

 Palmer of 1877 in hb Mo bot gard. Near 

 St. George, Utah." Coulter, Cont Na hb 

 3_423 

 OPUNTIA RUBRIFOLIA Engelm. 



"Prostrate, with thick ovate joints 12-15 

 cm long bv 10 cm broad, not tuberculated; 

 leaves spreading, somewhat recurved, 

 reddish, 8-10 mm long; pulvini 2-2.5 cm 

 apart with brownish-gray persistent 

 wool and numerous yellowish bristles (es- 

 racially on the upper edge); spines often 

 twisted. 2.5-6 cm long, often a few arlcli- 



716 



duced by L. Winter CGC 1904, xxxv. 34, 

 1904 ' 60) ' Allied to P untia 



OPUNTIA TESAJO Engelm. 



"With very short woody stem, and 

 growing in little clumps 3 dm or less in 

 diameter; joints slender and not distinctly 

 tuberculate; flowers simple, bell-shaped, 

 yellow. Type, Gabb 26 in hb Mo bot gard. 

 Among rocks, especially toward the west 

 coast and in the more central portions', 



Lower California." Coulter, Cont Na hb 



or- 



bicuiar to obovate, fleshy, with terete 

 base 15-25 cm long: puivini not depressed, 



$ \^^^*** g, 



spreading (more than twice as long as 

 tnos e of basilaris and darker-red): flower 

 and fruit not seeru-Type, growing in Mo. 

 Bot. Gard. 1898, from collection ma4e by 

 Trelease in 1892. At Caliente, in the Te- 

 hachapi Mountains, California. Speci- 

 niens examined: California (Trelease of 

 1892). This species is near O. basiiaris, 

 *>"t differs in its rounder more fleshy 



for the pulvinus with a furrow on either 



si< * e *** tne general surface), yellowish 

 hrigtles and especially in its much j r 



leaves." Coulter Contr na hb 3:434-435. 



O RCHIASTRTTM Lem, in Illustr Hort 2 

 Misc 96, 100' (1855). rrLachenalia fide 



C. BLEPHAKIGLOTTIS Willd, sp pi 4: 



D. M 1:127. ^Habenaria ciliaris fide IK. 

 OBCUTTIA Vasey. A 1:367 fdr 



o. GAZ.ZFOBNICA Vasey. A 1:367 fdr. 



OBEASTBUM 



O. ALPIGENUM P 3:147. 



O. ANDEBSONII P 3:147. 



O. EL.ATUM P 3:147, 4:107 S. 



ORE GARY A P 1:57. 



O. ABOBTIVA P 3:114. 



Parish Er 7:95. SBer mts. "Whole 

 plant more or less sparsely hispid, as 

 well as silky canescent; nutlets com 

 all maturing, and then loosely conniv- 

 ent ' and less incurved than when by 

 abortion solitary; their dorsal surfaces 

 entirely smooth. Originally character- 

 Jzed by abnormal specimens in which 

 all but 1 of the nutlets had aborted." 

 O. APraiS P 3:110. 

 g. BAKEBI P 4:92 

 g. gJ^EBE A P 3:113 



g- S A B?w?S5?^f' VI 41 Nov TTt 

 S- r _ E 1 ASTWOODAE M 3 - 141 - Nev ' ut ' 



p 1:68 



obovate- 



oMong, 12 inches long, 5 broad: spines 

 several. slightly compressed and 

 twisted, the longest 1^-2 inches long: 

 flowers terminal and lateral, 2y 2 inches 

 long; outer perianth-segments deltoid, 

 f^oshy; inner obovate-spathulate, yel- 

 lowish, turning to a dull red. Intro- 



based on cyn - 



on Ert- 



Q_ HTTMIIiIS P 3-112 

 Q" nrTEBBTJFTA P 3-111 

 o . I.ETTCOPHAEA P 1:58 'based on My- 

 osotis 1. 



Variety ConFEBTIFIiOBA Parish, Er 

 7:95. based on O. confertiflora. P 3:112. 

 The subcapitate infl of type of O. 



