GOLDMAN—PLANT RECORDS OF LOWER CALIFORNIA. 8538 
disconnected plants forming a hollow circle can be traced by the remains of dead 
trunks toa common center. The plants show a preference for soft parts of the coastal 
plain and grow usually in groups, often topping a slight eminence formed of wind- 
drifted material. These cactuses serving as a sand binder and preventing erosion 
tend to favor further accumulations. The desert foxes (Vulpes macrotis devius) of 
the region find congenial burrowing places among the procumbent trunks. 
Lophocereus sargentianus (Orcutt) Britt. & Rose. 
Species of the genus Lophocereus range nearly throughout the desert regions of 
Lower California from the Cape northward to San Quintin on the Pacific coast and to 
the arid region near the upper end of the Gulf of California. The genus is also rep- 
resented in southern Arizona and Sonora. The distribution of the species, however, 
is imperfectly known. The present species was not distinguished from L. schottit by 
us in the field and may have been confused with it. We failed to note L, sargentianus 
at San Quintin, the type locality, but a Lophocereus seen in several places on the 
sandy plains between San Fernando and Pozo San Augustin may have been this 
species. 
Lophocereus australis (K. Brandeg.) Britt. & Rose. PLATE 126, B. 
First noted by us along the road from San Pedro to Tres Pachitas, south of La Paz. 
From this point to the Cape and eastward to San José del Cabo it is quite common at 
low elevations wherever the soil is soft. It was noted by us north of La Paz. It has 
been credited by Britton and Rose to southwestern Sonora. Specimens were col- 
lected at Cape San Lucas, where the plant was growing in dense patches. It differs 
from schottii, which it seems to replace here, in its taller, more slender, and much 
more numerous stems. The ridges are 6 to 8 in number along the basal parts of stems, 
becoming irregularly more numerous toward the long-spined fruiting tips. 
Lophocereus schottii (Engelm.) Britt. & Rose. GARAMBULILO. PLATE 125, B. 
Originally described from Sonora and probably extending throughout the greater 
part of Lower California. It was first seen and collected by us near the mouth of 
Esperanza Canyon, at the east base of the San Pedro Martir Mountains and was com- 
mon over the desert to San Felipe on the Gulf of California. A species assumed to 
be the same was seen at San Francisquito and noted many times along our route 
southward to La Paz. ‘From near La Paz to Cape San Lucas it is replaced by DL. 
australis. Lophocereus schottii grows 1.8 to 3.5 meters high in alluvial valleys and 
canyon bottoms along the backbone of the Peninsula and on sandy plains. The spines 
are of two kinds, slender ones massed on the ends of the branches and extending 
downward from 30 to 125 or 150 cm. and shorter and stouter ones ranged along the 
ridges, into which the former change rather abruptly. The ridges are commonly 5 in 
number, but vary from 4 to 6. The large flowers appear along the line of demarcation 
between the two sets of spines. In the vicinity of La Purisima the species was in 
flower November 4. It is commonly known in the Peninsula as “garambullo,”’ a 
name applied also to Myrtillocactus geometrizans in the southern part of the plateau 
region of Mexico. 
Mamillaria roseana T. 8S. Brandeg. 
A specimen referred by Rose to this handsome species was collected at about 360 
meters elevation 20 miles east of San Ignacio. Brandegee gives its range as the lower 
elevations throughout the Cape District south of La Paz and northward to Calmalli. 
He further says:! “This cactus is one of the most showy of Lower California. Palmer 
collected it at La Paz, and it is no. 139 of the list from that place in Contributions 
1 Zoe 2:19. 1891. 
