Tas. 7648. : 
CEREUS Paxrontanus. 
| Native of Brasil ? 
Nat. Ord, Cactea.—Tribe Ecu1nocactex. 
Genus Cereus, Haw.; (Benth, & Hook. f. Gen. Plant. vol. i. p. 849.) 
Cereus (Colubrini) Pawtonianus; caule gracili colamnari 5-6-gono flexuoso 
ad 1 poll. diam. parce ramoso luride viridi, costis compressis obtusis 
sinuatis vix lobatis, pulvillis subeonfertis vix } poll. distantibus par- 
vulis glabris, aculeis 8-10 acicularibus radiantibus levibus 2 interiori- 
bus longioribus inéequilongis longiore } poll. longo, floribus amplis, 3-4 
poll. diam., calycis tubo 23 poll. longo cylindraceo } poll. diam. levi 
glabro pallide viridi bracteolis paucis dentiformibus brunneis instructo, 
perianthii segmentis 4—5-seriatis patenti-incurvis lanceolatis subacutis 
exterioribus dorso viridibus brunneo marginatis et variegatis, interioribu 
albis, filamentis brevibus, antheris minutis, stylo valido exserto, stigmati- 
bus 12 linearibus fere $ poll. longis obtusis radiantibus. 
C. Paxtonianus, Monv. ew Salm-Dyck, Cact. Hort. Dyck, Fd. If. p. 211. 
Foerst. Handb. Cact. p. 727. Labouret, Monogr. Cact. p. 371. K. 
Schumann, Gesam. Beschr. der Kakteen, p. 135, 
C. Cavendishii, Monv. 1.c. Rev. Hortic. 1857, p. 521. 
The name Cereus Paztonianus first appeared in Mon- 
ville’s trade catalogue of Cactex, from which it was taken 
up by Prinée Salm-Dyck, together with C. Cavendishii, 
which was assumed to bea different species. Of course 
both came from the magnificent collection of the Duke of © 
Devonshire at Chatsworth, of which Mr. (afterwards Sir 
Joseph) Paxton was the keeper, whence the names. 
Their native country was and is unknown. Differing a 
little in habit and colour, they came to be regarded as 
different species, and it was many years before either 
flowered; and until C. Pazxtonianus did so at Kew, 
C. Cavendishii alone had done so. The flower of the latter 
is briefly described in the ‘ Revue Horticole,” 1857, p. 
521, and the description precisely accords with that of the 
plant here figured. Schumann was the first to unite the 
two plants under the one name. 
The specimen here figured of Cereus Paxtonianus was 
purchased for the Royal Gardens, Kew, from Mr. A. 
Benecke, dealer in Cacti, &c., Birkenwerder, near Berlin, 
Aprit 1st, 1899, 
