Tans: 714G 
CONVOLVULUS Macrostsetus. 
Native of Lower California. 
Nat. Ord. ConvotvuLacEa.—Tribe ConvorlvuLes. 
Genus Convotvutus, Linn.; (Benth. & Hook. f. Gen. Plant. vol. ii. p. 874.) 
Convotvutus macrostegius; suffratescens, fere glaberrimus, caule gracili 
tereti fusco, ramulis annotinis elongatis volubilibus viridibus, foliis longe 
petiolatis late ovato- vy. deltoideo-cordatis 4-5 poll. latis obtuse acutis 
v. acuminatis margine recurvis undulatis grosse crenatis v. basin versus 
fere lobulatis sinu lato v. angusto rotundato, basi palmatinerviis, nervis 
lateralibus paucis, nervulis laxe reticulatis, petiolis gracilibus 3-5-poll. 
longis, peduncalis axillaribus 6-10-pollicaribus 1-3-foris infra apicem 
bibracteatam pubescentibus, bracteis orbicularibus concavis apiculatis 
membranaceis 2 poll. longis, sepalis 3-3 poll. longis oblongis truncatis 
apice retusis costa valida in mucronem subulatum producta, corolla 
albze roseo tinctz tubo late infundibulari, limbo 3-poll. diam. explanato, 
ovario strigilloso, stigmatibus linearibus teretibus obtusis. _ 
C. macrostegius, Greene in Bull. Calif. Acad. vol. i. (1885) p. 208. A. Gray 
Synopt. Fl. N. Am. vol. ii. part i. p. 435. : : 
C. occidentalis, S. Wats. in Proc. Am. Acad. vol. xi. (1876) pp. 89, 118; Bot. 
Calif. vol. i. p. 533 partim (non A. Gray). 
There are very few species of Convolvulus indigenous 
in North America, as compared with Europe and Western 
Asia,—a dozen in all, including C. sepium, L. and C. 
Soldanella, L., which are common to the Old World. 
Except C. arvensis, L., no species native of Hurope has been 
naturalized in N. America, and that very sparingly. Seven 
species are Californian, all of them, except C. Soldanella, 
confined to the west of the Rocky Mountains. Two of 
these, C. occidentalis, A. Gray, and C. macrostegius, Greene, 
are closely allied to C. sepium, differing from it in the 
shape of the leaves, and conspicuously in their very long 
petioles and pedicels. OC. macrostegius is the larger and 
handsomer of the two; it is indeed one of the finest species 
of the genus, and being quite hardy, and flowering 
copiously for many weeks continuously, it has all the 
qualities requisite for becoming a great favourite. It 
appears. to be a rare plant in California, the only hitherto 
recorded localities for it being San Clemente Island, one 
JUNE lst, 1900, 
