Convolvulus Occidentalis. 85 
The following names and numerous other are very inconveniently 
near in sound: 
Acrospira Welw., Acrospeira B. & Br.; Chamerops L., C: amarops 
Fr.; Camellia L., Camillea Karst.; Coronilla Tourn., Corynella DC., 
Corynelia Fr.; Hyaloseris Gr., Hyaloceras Dur. et Mont.; Lachnea 
L., Lachnea Fr.; Omphalea L., Omphalia Fr. 
CONVOLVULUS OCCIDENTALIS Gray (C. macrostegius 
Greene.) 
BY T. S. BRANDEGEE. 
This species was described by Dr. Gray in Proc. Am. Acad. 89, 
and is as he writes common in western California on and near the 
coast. The form is the onewith large broad bracts, and is described 
as having often two and rarely even three flowers from the same pair 
of bracts. C. macrostegius was collected by Dr. Palmer on Guada- 
lupe Island and published by Dr. Sereno Watson as C. occidentalis 
with the following note of Dr. Palmer: ‘‘In crevices of high rocks 
hanging down six feet or more; continuing in bloom from March 
through the summer. A thousand flowers were seen on a single 
plant.” Prof. Greene in Bull. Cal. Acad. i, 208, considers this Guad- 
alupe plant a distinct species and in Bull. Cal. Acad. ii, 408, reports 
it as growing upon Santa Cruz Island and also credits it to San 
Miguel Island. Dr. Gray in Sup. Syn. Flora, 435, gives San Clem- 
ente Island as a locality, and Mr. Lyon notes its presence upon 
Santa Catalina Island. Specimens from all these localities are in 
the herbarium of the California Academy of Sciences and I have 
carefully observed the plant growing upon Santa Catalina, Santa 
Cruz, Santa Rosa Islands, and have examined C. occidentalis at many 
places along the mainland coast. It will be seen that C. macro- 
stegius has been considered an insular species closely related to a 
mainland species growing upon the adjacent coast. The description 
of and notes concerning C. macrostegius all refer to its largest forms. 
The two extremes in size are common on Santa Rosa, where all 
forms between those with stems nearly half an inch in diameter and 
plants less than two feet high bearing a single flower can be found. 
A form with the apex of the leaf rounded also grows upon Santa 
Rosa. On Santa Catalina, where it is common, this year I carefully 
examined many plants and was unable to find any peduncles more 
es 
