264 THE CACTACEAE. 
On page 185, vol. 1, under Opuntia megacantha, insert: Opuntia effulgia Griffiths (Bull. 
Torr. Club 46: 195. 1919) was obtained from San Luis Potosi, Mexico, and grown at Chico, 
California; O. hispanica Griffiths (Bull. Torr. Club 46: 198. 1919) was described from a plant 
received from Spain and grown at Chico; O. chata Griffiths (Bull. Torr. Club 46: 199. 1919), 
from Aguascalientes, Mexico, was grown at Brownsville, Texas, and at Chico; O. obovata 
Griffiths (Bull. Torr. Club 46: 202. 1919) from Hepasote, Mexico, was also grown at 
Brownsville and at Chico; O. amarilla Griffiths (Bull. Torr. Club 46: 205. I919) was 
obtained in cultivation at Cardenas, Mexico, and grown at Chico. , These are known to us 
only from descriptions and appear to be races of O. megacantha or of some of the related 
tall, white-spined species. 
Add to illustrations: Ann. Rep. Smiths. Inst. 1917: pl. 16, f. 2. 
On page 191, vol. 1, under Opuntia robusta, insert: Opuntia cyanea Griffiths (Bull. Torr. 
Club 46: 196. 1919) judging from the original description may be related to O. robusta. 
Add to illustrations: Engler and Prantl, Pflanzenfam. 3%: f. 56, G, as Opuntia albicans. 
On page 194, vol. 1, Opuntia fragilis, add to illustrations: Watson, Cact. Cult. ed. 
3. f. 55; Deutsche Gart. Zeit. 7: 313; Remark, Kakteenfreund 22, as Opuntia brachyarthra; 
Schelle, Handb. Kakteenk. 56. f. 15, as O. fragilis brachyarthra; Meehans’ Monthly 11: 57. 
On page 195, vol. 1, under Opuntia arenaria, add to illustration: Meehans’ Monthly 
II: 57. 
On page 195, vol. 1, Opuntia erinacea, add the synonym: Opuntia ursus horrtbilts 
Walton, Cact. Journ. 2: 152. 1899. 
Also add to illustrations: Cact. Journ. 1: 93, as Opuntia; Mdéllers Deutsche Gart. 
Zeit. 25: 476. f. 9, No. 1c; Cycl. Amer. Hort. Bailey 3: 1149. f. 1548; Stand. Cycl. Hort. 
Bailey 4: 2363. f. 2603, as O. ursina; Meehans’ Monthly 4: 9; Monatsschr. Kakteenk. 14: 
105; N. Amer. Fauna 7: pl. 11, as O. rutzla. 
On page 198, vol. 1, under Opuntia rhodantha, add to illustrations: Monatsschr. 
Kakteenk. 30: 153, as Opuntia xanthostemma. 
On page 199, vol. 1, under Opuntia polyacantha, add the synonym: Opuntia missourt- 
ensis watsonit Schumann, Gesamtb. Kakteen 735. 1898. 
Also insert: Extend range to northwestern Oklahoma. 
Add to illustrations: Rep. Mo. Bot. Gard. 13: pl. opp. 13; Schelle, Handb. Kakteenk. 
54. f. 14, as Opuntia missouriensis; Méllers Deutsche Gart. Zeit. 25: 476. f. 9, No. 6, as O. 
schweriniana; Scientific American 124: 492; Meehans’ Monthly 11: 57; Stand. Cycl. Hort. 
Bailey 4: f. 2604. 
On page 201, vol. 1, under Opuntia grandis, add to illustration: The Garden 62: 425; 
Modllers Deutsche Gart. 25: 476. f. 9, No. 17. 
On page 203, vol. 1, under Opuntia nash11, insert: Illustration: Journ. N. Y. Bot. 
Gard. 6: f. 3. 
On page 204, vol. 1, Opuntia spinosissima, insert at end: A species of this series, 
Spinosisstmae, occurs on Navassa Island off the southeastern point of Haiti; specimens were 
sent us by Mr. F. P. Dillan, Superintendent of Light Houses, San Juan, Porto Rico, but 
they are not complete enough to be specifically referred. 
On page 206, vol. 1, under Opuntia moniliformis, add the synonyms: Cactus reticulatus 
Index Kewensis 1: 369. 1893;* Opuntia reticulata Karsten, Deutsche Fl. ed. 2. 2: 
457. 1895; Opuntia picardae Urban, Repert. Sp. Nov. Fedde 16: 35. 1919. 
On page 208, vol. 1, under Opuntia rubescens, add to illustration: Carnegie Inst. 
Wash. 269: pl. 10, f. 90. 91, as Opuntia catacantha. 
* The Index K i 7 2 i : 
See unt ae by pemensis refers Cactus reticulatus to Descourtilz (Fl. Med. Antill. 1: pl. 68), but the formal name 
