FLORA OP THE GALAPAGOS ISLANDS. 181 



superior! instructis ; spinis circa 20 inaequalibus 1.5 cm. non siiperanti- 

 bus uon puugenlibus plus miimsve arcuatis flavo-fuscis ; glochidiis paucis 

 (circa 50) iu summa parte areolae sitis et non arete pungentibus ai)ice 

 obtusis ; spinis lateralibus glochidiarum non emineutibus ; ovario paulo 

 quara 3 cm. longiore turbmato tuberculato ; areolis quam illae articularum 

 non minoribus et a lano modice copioso tectis et a spinis capillaceis 

 modice laxis ad 2 cm. longis flavo-fuscis munitis ; perigouio 3-3.5 cm. 

 maximo diametro ; lobis exterioribus subulatis, 3 mm. longis, sequenti- 

 bus late ovatis acutis mucronatisve verosimiliter flavo-viridibus, iutimis 

 subobovatis fere 2 cm. longis ; staminibus fere in fundo infimo floris 

 crateriformis insertis permultis ; stilo 2 cm. longo crasso ; stigniatibus 

 6 erectis incurvatis carnosis percrassis." — Wenman Isl. : Snodyrass & 

 Heller, no. 917 (hb. Berl. & hb. Gr.). "Note. —The relatively large 

 flower brings this species near 0. myriacantha, Web., from which it 

 differs in the mode of growth, smaller articles, and non-pungent spines." 

 [K. Sch. in litt.]. Endemic. 



O. myriacantha, Weber in Bois, Dictionn. d'horticult. 894 (1898), 

 & Bull, du Mus. d'hist. nat. Paris, 1809, p. 318 (1899). — Albemarle 

 Isl. : Hassler Exp,, ace. to ms. note of Engelm. (hb. Mo. Bot. Gard.). 

 Charles Isl. : Du Petit-Tliouars \_Dr. Nehoux\ (hb. Mus. d'hist. nat. 

 Paris, & hb. Mo. Bot. Gard.). Indefatigable Isl. : Hassler Exp.^ 

 ace. to ms. note of Engelm. (hb. Mo. Bot. Gard.). Endemic. 



Oi)uiitias also occur (ace. to field notes of several collectors) upon 

 Abingdon, Barrington, Bindloe, Chatham, Culpepper, Duncan, Hood, 

 Narborough, North and South Seymour, and Tower Islands, but as no 

 specimens of them have been secured it is impossible to refer them 

 with defiuiteness to any of the foregoing species. Dr. Baur^ says of 

 the genus : " Die grosse Opuntia hat eiuen verschiedenen Charakter 

 beinahe auf jeder Tnsel. Die Opuntia von l^arriiigtoii, Indefatigable 

 und siid-Albemarle z. B. entwickelt einen sehr hohen Stamm; die vou 

 Hood und Charles besitzt einen verhiiltnissmiissig niederen und dickeren 

 Stamm ; die Opuntia von Jervis wiederum einen sehr niederen ; die 

 Verzweigung beginnt schon kurz liber dem Boden ; die Opuntia von 

 Tower hat gar keinen Stamm, die Verzweigung beginnt sofort am Boden, 

 es ist ein niederer Busch, aber- kein Baum. Die Form von Bindloe 

 zeigt Charaktere, die zwischen den Individuen von Tower und Jervis 

 liegen.'' It seems not unlikely that the low plant on Tower lacking the 

 main trunk may be the same as Professor Schumann's 0. Helleri from 

 the not vt^ry distant ishuid of Wenman. 



1 Biol. Centralbl. xii. 247 (1802). 



