APPENDIX. 



Add to illustrations: Schumann, Gesamtb. Kakteen f. 15, as Cereus tephracanthus. 



On page 193, vol. iii, under Malacocarpus concinnus, add to illustrations: Succulenta 3 : 

 22, 48, as Echinocactus concinnus. 



On page 193, vol. iii, under Malacocarpus scopa, add to illustrations: Rother, Prak- 

 tischer Leitfaden Kakteen 107, as Echinocactus scopa cristatus; Kaktusy 26, as Echinocactus 

 scopa; Kaktusy 27, as E. scopa cristata; Kaktusy 28, as E. scopa rubra. 



On page 195, vol. iii, under Malacocarpus linkii, insert: Echinocactus ottonis linkii 

 Hortus (Forster, Handb. Cact. ed. 2. 554. 1885) is given as a synonym of E. linkii. 



On page 196, vol. iir, under Malacocarpus ottonis, add to illustrations : Succulenta 3 : 56, 

 as Echinocactus ottonis tenuispinus ; Rother, Praktischer Leitfaden Kakteen 34, as E. ottonis. 



On page 198, vol. iii, under Malacocarpus erinaceus, add to illustrations: Watson, 

 Cact. Cult. 98. f. 32, as Echinocactus corynodes. 



On page 200, vol. in, under Malacocarpus mamntulosus, add to illustrations: Rother, 

 Praktischer Leitfaden Kakteen 30, as Echinocactus submammulosus. 



On page 202, vol. iir, under Malacocarpus haselbergii, add to illustrations: Succulenta 

 3:31, as Echinocactus haselbergii. 



On page 205, vol. in, under Malacocarpus leninghausii, add to illustrations: Succu- 

 lenta 3: 39, as Echinocactus leninghausii. 



On page 207, vol. in, under Hickenia micro- 

 sperma, add to illustrations: Succulenta 3: 71; 

 5: pi. I ; Thomas, Zimmerkultur Kakteen 35, as 

 Echinocactus microspermus. 



On page 237, vol. in, insert the following: 

 19. Cactus oaxacensis sp. nov. 



Globular to ovoid, 12 to 15 cm. thick, with a 

 small, low crown only 2 to 3 cm. high and 3 to 4 cm. 

 broad; ribs 11 to 15, prominent, usually rounded; 

 radial spines 8 to 12, subulate, more or less recurved 

 at first, reddish brown but grayish in age, 2 cm. long 

 or less; central spines i or sometimes 2, erect or por- 

 rect; flowers slender, about 2 cm. long, dark rose; 

 filaments and style light yellow; fruit thick-clavate, 

 2 to 4.5 cm. long, scarlet, shiny; seeds small, black. 



This plant was illustrated and mentioned 

 in the place here cited (Cactaceae 3: 237. f. 

 249) but was not given a specific name. Since 

 then C. R. Orcutt reports finding it at Salina 

 Cruz and Dr. B. P. Reko sends us a photograph 

 and flowers obtained by him in 1923, while Dr. 

 J. A. Purpus re-collected it in 1923 (type) and 

 has sent us living plants. 



Illustration: Cactaceae 3: 236. f. 249, as Cactus sp. 



Figure 262 is from a photograph of the plant sent us by Dr. Reko. 



On page 238, vol. in, insert: Melocactus ellemeetii Miquel (Nederl. Kruidk. Arch. 4: 

 336. 1858) and M. pachycentrus Suringar (Verh. Akad. Wettensch. Amst. II. 8: 28. 1901) 

 have not been identified. 



On page 238, vol. in, at end of Cactus add: Cactus aculeatissimus is listed by Stendel 

 (Nom. 131. 1 821) credited to Zeyher and cited by the Index Kewensis, but it has never 

 been identified. 



Cactus tuna major is used by Roxburgh (Hort. Bang. 37. 1814). 



Fig. 262. — Cactus oaxacensis. 



