542 MACBRIDE. 
sterile hills, Telixtlahuaca, July 27, 1895, L. C. Smith, no. 471; 
near Oaxaca, July 26, 1896, C. Conzatti, no. 157, in part; gravelly 
soil near Oaxaca, July 3, 1900, Charles C. Deam, no. 11; Cerro San 
Antonio, June 26, 1906, C. Conzatti, no. 1411. These specimens were 
labeled H. limbatum Benth., but that species is a more canescent plant 
of rigid erect habit, and with narrower longer leaves (10-15 mm. long, 
1.5-2 mm. wide) and almost glabrous nutlets. The aspect, too, is 
very different both from the dissimilar manner of growth and because 
the stems of H. limbatum are leafiest at the base, where the leaves 
persist, while in H. foliosissimum the stems are equably leafy and the 
lower leaves soon die. 
Heliotropium jaliscense, spec. nov., suffruticosum erectum, ramis 
hispidis et adpresse strigillosis; foliis petiolatis ovato-lanceolatis 
subacuminatis basi attenuatis integerrimis 5-10 cm. longis 2-3 cm. 
latis utrinque strigillosis et subtus in nervis hispidis; racemis flexuo- 
sis gracilibus ebracteolatis pedunculatis; pedunculis subterminalibus; 
calycis lobis hispidis latitudine inaequalibus subacuminatis; corollae 
tubo calycem ca. 2 mm. superante; corolla 3.5-4 mm. longa; an- 
therae media in parte tubi insertae; stigmate late conico basi annu- 
lato stylum vix superante; nuculis 4 glabris forsan maturitate 
reticulatis— Mexico: bushy slopes near San Sebastian, Jalisco, 
March 16-19, 1897, E. W. Nelson, no. 4083 (ryPE, in Gray Herb.). 
A species bearing a superficial resemblance to H. parviflorum L. but 
by style and fruit characters a member of the section Luheliotropium. 
HELIOTROPIUM PHYLLOSTACHYUM Torr., var. erectum, var. NOV-, 
caulibus erectis 1-4 dm. altis; foliis oblongo-lanceolatis 1-3 cm. longis 
ca. 3mm. latis; corollae tubo calycem superante, limbo 3-5 mm. lato. 
— Mexico: Culiacan, Sinaloa, Oct. 24, 1904, 7. S. Brandegee (TYPE: 
in Gray Herb.); between Guichocovi and Lagunas, Oaxaca, June a, 
1895, E. W. Nelson, no. 2743; Real de Guadelupe, Sept. 14, 1898, 
E. Langlassé, no. 351; near Cuernavaca, Morelos, July 29, 1896, 
C. G. Pringle, no. 7183; near Iguala, Guerrero, Sept. 22, 1905, C. G. 
Pringle, no. 13,681; Yucatan, 1895, G. F. Gaumer, no. 790. : H. 
phyllostachyum Torr. in its typical form is a low (rarely 1 dm. high) 
diffusely spreading plant with short broad leaves and inconspicuous 
flowers, the corolla 1.5-2 mm. long, scarcely exceeding the calyx. 
It is mostly of more northern range than the variety, although it has 
been secured at Manzanillo, Colima, by Dr. Palmer (no. 891) and at 
Guaymas (no. 232). No. 891 is quite typical but no. 232 represents 
a transition to the variety in its erect habit. Because of these facts 
it seems best to give the southern plant varietal rather than specific 
rank, 
