4 



• 



* ". 

 -^^t ^ 



vi 



-- ^- 



HEI^IOCERUUS. 



129 



Haworth, Phil. Mag 



from Brazil, probably belongs here. Cereus auranliacum 



1830, although said to have come originally 



Monogr. Cact. 428. 1853), a hybrid of this species, is only mentioned 



perhus Haage (Labourct 



Weingart (Monatsschr 



Hort 



1 841) is probably only a form. 



sidered it distinct. 



Weingart 



Hdiocereus speciosus 



Lemaire 



1846) is a hybrid of which 



Illustrations: 



Kakteen 



Herb 



Schuman 



28; pi. 49; 



Mem. Mus. Hist. Nat. Paris 3: pl. o; Edward 



Encycl 



specios 



spcciosissim 



Plate xvir, figure 2, shows a flowering joint of a plant in the collection of the New York 

 Botanical Garden. 



4. Heliocereus cinnabarinus (Eichlam). 



Weingart 



1910. 



C5tems erect or in time creeping and more or less rooting, very slender, i to 1.5 cm. in diameter; 



ribs few, sometimes only 3 or 4; areoles 2 to 3 cm. apart; spines about 10, bristle-like, 6 to 8 mm! 



long; flowers about 15 cm. long, the tube bent just above the ovary, more or less funnclform; outer 



perianth-segments narrow, acute, green; inner perianth-segments oblong to spatulate, sometimes 



2.5 cm. broad, abruptly acuminate, somewhat erose toward the apex; style rose-colored; stigma- 

 lobes 7, white. 



Type locality: Vulcan Agua, Guatemala. 



Distribut 



Guatemala 



We know the plant from specimens collected by E- W 

 Maria, altitude 2,600 to 3,800 meters, January 24, 1896 ( 



spmes, 



Heliocereus elegantissimus, but with slenderer stems 

 ruptlv acuminate inner Derianth-seements. 



weaker 



must 



suggests the possibility of its cultivation in the open in certain parts of the United States. 



ereus amecamensis* (Heese) Britton and Rose, Con 



Cereus amecamensis Heesef in Rother, Prakt. Ratgeb. 11: 442 

 Cereus amecaensis Hecsc, Gartenwelt 1:317. 1897. 



909 



1896. 



Plant pale green when young, similar to 77. speciosus in habit and spines; ribs 3 to 5; flower 11 

 em. long, 8 to 12.5 cm. in diameter; flower-tube 3.5 cm. long, i cm. in diameter, green, with green 

 scales and whitish bristles; outer perianth-segments yellowish green, grading into oblanceolate white 

 mner segments, 7 cm. long, 2 cm. wide; stamens white except the pale-green bases, attached all 

 over the tube; anthers creamy white; style white, slightly exserted beyond the stamens, strongly 

 curved down in the tube; stigma-lobes 11, linear, light creamy white; ovary cylindric, 6 mm. long. 



Type locality: Amecameca, Mexico. 



Distribution: Central Mexico. 



This species has been introduced into Europe by Dr. C. A. Purpus, where it is now 

 much cultivated. 



Illustrations: Curtis's Bot. Mag. i35-pl- 8277; Rother, Prakt. Ratgeb. 11:442; Gar- 

 den 76 : 306, all as Cereus amecamensis; Bltihende Kakteen 3 : pl. 157 ; Gard. Mag. 55 : 427 ; 

 Gartenwelt i: 316, 317. f. i to 3, as Cereus amecaensis. 



Confusion of the type locality, Amecameca, with another Mexi 

 two spellings of the name of this plant. 



t Rother here spells this name Hesse, doubtless erroneously. 



town, Anieca^ doubtless accounts for the 



