•67 



Cacti.— Orcutt. 



68. 



1842. (10 col. pi.). 

 SCHUMANN, KARL: 



Cactaceae In Engler-Preqntl's Natur- 

 lichen Pflanzenfamilien. iii. (6 a) 156-205. 

 1894. (— f.). 



SURINGAR, W. F. R.: 

 — Melocacti novi ex insulis archlpelagi 

 Indici-Occidentalis Neerlandicis Curacao, 

 Aruba et Bonaire. Acad. Reg. Neerl. 

 Scient. Amstelod. xix. 183-195. D 1885. 

 — Neuere Brfahrungen Mehrere Cacteen. 

 Nov. Act. Nat. Cur. xix. 117-124. pi. 15-16. 

 1S39. 



TOUMET, JAMBS W. : 



—The Giant Cactus. Pop. Sci. Mo. li. 

 641-644. S 1897. (2 f.). 

 TRELEASE, WILLIAM: 

 — A cactus corner in the Missouri botani- 

 cal garden. W. Am. Sci. vii. 187. Ag 1891. 

 (1 pL). 



VOCHTING HERMANN: 

 — Beitrage zur Morphologic und Anatomic 

 der Rhipsalideen. Jahrb. f. m. Botanik, 

 ix. 1873. (36 p. 4 pi.) 

 WATSON. SERENO: 



—Biographical index to North American 

 botany. Pt. 1. Polypetalfe. Mr 1878 (476 p.). 

 ZUCCARINI, JOS. GERH.: 

 — Plantarum vel minus cognitarum, que in 

 Horto botanico herbarioque regis mona- 

 censi servaniur. 



Fasc. III. Cacteae. 597-742. (5 pi.). 



OEREUS GEOMETRIZANS Mart. 



Arborescent, 20 feet high or more, as- 

 suming somewhat an umbrella farm 

 from its manner of branching; joints 

 mostly short, thick; ribs 5 or 6, acute . 

 when young, with sharply defined inter- 

 \a s — on old plants otien very obt se. 

 bearlrg large woolly spineless areolae; 

 stems of young growth 3 inches in diam- 

 e er, are.Le IM- nch apa:t. wo lly— in 

 age the enlarged bull:ous ba.es of the 

 spines are in close contact, covering the 

 areolae completely (or spineless!); radial 

 spines 3-5, ^A-l^^ inches long, central spine 

 iy2 inches in maximum lengch, s.ra'ght 

 or twisted, all stout, angled, ashy black, 

 woody; central spine sometimes absent, 

 lateral radials i su lly the longer, very 

 var.abiC. Plant smocth, brig, it apple 

 green or glaucous, known as tne garan- 

 DuUo. Fruit rarely over V2 inch icng, alf 

 as great in diameter, or globose, attached 

 to a small tomentose areoae, remains of 

 flower often p?rsistent, when dfcidLious 

 leaving a tmaii r u; d sc.r; epi e m s 

 usually smooth, with 1-6 Tomentose areo- 

 lae bearing minute scales (more rarely 

 bearing in their axils a more m.inute 

 spine), purp'e (sometimes glaucous) with 

 purple pup: fruit I urst-ng Irregularly at 

 maturi.y. As many as 14 iruits were seei 

 growing f.om one a eoli; one rib of 11 

 areolae on a joint of 5 ribs bore 36 fruits, 

 on'y 1 of the aieolae without fruit, and 

 this is frequent on the hundreds of 

 branches— old and yourg alike, almost to 

 the trunk. Sfeds iTge, black, 63 frrm 

 one berry. Fruit ripening in June. 1902, 

 in the sate of Caxaci, Mexico (Orcutt 

 2670); :n July near Sr.n 1 uis Potosi (2! 09), 

 where its growth is smaller, and large 



quantities are collected by the inhabit- 

 ants and eaten fresh, or dried; Tehuacan 

 (26.30;. 



Console made this the type of his genus 

 Myrtillocactus. Cereis cochal Or;utt, 

 from Lower California, I3 closely allied, 

 and treated as a variety by some authors. 



CEREUS TRIANGULARIS M Her. 



Climbing over recks and trees, joints 3- 

 sided, 11^ inches in diameter, 1 cr 2 to 

 many feet long, curving, the side next to 

 tree or rock nearly flat, the others .slight- 

 ly concave; ribs acute, ur.du ate-tub.rcu- 

 late, blaring in ti.e depressions between 

 the undulations small tomentose areolae 

 l%-2';4 inches apart, with 3-4 stout bulb- 

 ous brown or blackish spines 1-2 mm ong. 

 Flowered (28 Je 1902) in the night; flower 

 a foot long; tube of corolla 5 inches long, 

 light apple green, spineless, with about :0 

 gieenish yellow sepaloid scales, Vz inch 

 wide or less, acuminate, yellowish, about 

 20; petals snowy white, an inch wide, 5 

 inches long, acun:irate about 20; hla- 

 ments white, 2 inchts shorter than the 

 petals, anthers sulphur yello.v; s yls 9 

 inches long, ^ thick, white; ffi spreading 

 slender white stigmata ihree-foarths .nch 

 long; fruit light cr.mson, 3 inches in di- 

 ameter, 5 in length, with about 2> sepa- 

 loid apple green scales, forming a pretty 

 color-contrast, epidermis an eighth of an 

 inch thick, pulp whit-, filled w th aoout 

 3,000 small back s eds (f.uic oought in 

 Tehuacan market tor b cents, £8 Je i802i. 

 Plant rather light geen, t e acu.e r.bs 

 narrowly marglneu wi'h tiOv\n, 1-: mm 

 wide or less on either side, f iiahalla or 

 pltajaya of the Tndiai^s. States of Pu -b- 

 la and Caxaca, Mexico (Orcutt 2710, 2.11). 



CEREUS GIGANTEUS Engelm. 



The 'Suwarro' or giant cactus of Arizo- 

 na and Sonora, 25-60 feet high, 1-2 in di- 

 ameter, thickest about the lower thira 

 where generally the 2 or 3 alternate or 

 sometimes opposite branches start, and 

 from thence slightly ta^cr toward the 

 summit. Stems and branches marked by 

 superficial transverse furrows, indicating, 

 as it seems, the annual periods of growth, 

 forming rings of 4-8 inches in hight. 

 Branclcs u"eina\ rnd always of less 

 hight than the main stem, mostly 5-6 feet 

 long, with 12-18 ribs. 



♦ « » 



The content.s and paginc^ of the West 

 American Scientist, volume 13. of Calif- 

 ornia Art & Nature volume 2, and of the 

 Review of the -'actacese volume 3, are i- 

 dentical (issued in order named). 



