ECHINOCEREUS. 



Engelmann compares this species with E. fendleri and in that relationship most writers 

 have since treated it, but in its habit and shape of flower it suggests a closer relationship 

 to the scarlet-flowered species such as E. polyacanthus. 



Cereus bigelovii was doubtless the first name applied to this plant, but for some reason 

 it was afterward changed, although not in the case of the legend for the first illustration 

 cited below. 



Illustrations: Pac. R. Rep. 4: pi. 4, f. 8, as Cereus bigelovii; Curtis's Bot. Mag. 126: pi. 

 7705, as Cereus mojavensis. 



Text-figure 4 is from a photograph obtained through S. B. Parish, taken by Dr. P. 

 A. Munz near Pinos Wells, southern edge of the Mojave Desert, altitude 1,335 meters. 



7. Echinocereus leeanus (Hooker) Lemaire in Forster, Handb. Cact. ed. 2. 828. 1885. 



Cereus leeanus Hooker in Curtis's Bot. Mag. 75: pi. 4417. 1849. 

 Echinocereus multicostatus Cels in Forster, Handb. Cact. ed. 2. 834. 1885. 

 Echinocereus leeanus multicostatus Schumann, Gesamtb. Kakteen 289. 1898. 



Plant erect, about 3 dm. high, 1 dm. thick at base, tapering gradually toward the top, simple so 

 far as known; ribs 12 to 14, acute, bearing rather closely set areoles; spines about 12, acicular, very 

 unequal in length, the central and longest about 2.5 cm. long; flowers brick-red, 5 to 6 cm. long; 

 inner perianth-segments somewhat spreading, spatulate to obovate, 3 cm. long, acute; filaments 

 elongated, quite as long as the style. 



Type locality: Northern Mexico. 



Distribution: Mexico, but range undetermined. 



The only herbarium specimens so-named 

 which we have seen are two sheets in the herbarium 

 of the Berlin Botanical Garden, representing two 

 flowers which are scarlet, slender, 9 cm. long, with 

 pale brownish spine-clusters intermixed with cob- 

 webby white hairs. We have studied a plant sent 

 from the Berlin Botanical Garden to the New York 

 Botanical Garden which has not flowered. 



This species differs from its relatives in having 

 more numerous ribs. 



The type specimen was presented to the Royal 

 Botanic Gardens at Kew about 1 842 by Mr. James 

 Lee, owner of the Commercial Gardens at Ham- 

 mersmith, near London, for whom it was named, 

 and it is said to have come to him from France. 

 Echinocereus pleiogonus and E. multicostatus, which 

 Schumann refers here as synonyms, were described 

 about the same time from specimens introduced 

 into France by Cels. It is not at all unlikely that 

 all three had a common origin. Cereus multi- 

 costatus Cels (Schumann, Gesamtb. Kakteen 288. 

 1898) is only a catalogue name. 



A small specimen of this species obtained from Berlin in 1914 has been grown at the 

 New York Botanical Garden, presumably correctly identified. The young areoles are white- 

 woolly the spines are acicular, the outer ones white, the central ones with brown tips. 



Illustrations: Curtis's Bot. Mag. 75: pi. 4417; Gard. Mag. Bot. 2: pi. facing 81, as 

 Cereus leeanus; Schumann, Gesamtb. Kakteen f. 49. 



Text-figure 5 is from a photograph of the first illustration above cited. 



Fig. 5. Echinocereus leeanus. 



