362 BOTANICAL GAZETTE | NOVEMBER 
to the functions of the organ borne onit. A suggestive case inthe alge _ 
occurs in Vaucheria geminata and V. terrestris, where an unspecialized 
branch, or gametophore, bears both antheridia and oogonia. It is pos- 
sible that the original type of gametophore was hermaphrodite. In 
Vaucheria terrestris there are occasional branches which bear but one 
organ, showing that a unisexual gametophore might be developed 
from the hermaphroditic.— ANNE B. TowNsEND, Cornell Oniversity. 
SOME PLANTS RECENTLY INTRODUCED INTO FLORIDA. 
Two years since? I called attention to some South American species 
found by Mr. A. H. Curtiss in ballast vr about streets in various parts 
of Florida. A package of specimens recently sent for study by Mr. 
Curtiss contains several South American and southwestern species 
apparently not before reported from Florida, most of them unrecorded 
from the North American continent. The plants from Pensacola were 
collected, in the words of Mr. Curtiss, “from lands lying inside the 
wharves, such as presumably consist more or less of ballast earth.” 
This fact suggests that Jusstaea suffruticosa, and Hydrocotyle bonar we 
formerly reported from Pensacola, are perhaps introductions to be 
classed with Alternanthera pungens, Solanum cleagnifolium, and An- 
themis mixta (recorded in the article referred to), and that they have 
reached the Florida coast through the same channel as the following 
species : 
Ipom@aA PALMATA Forsk. Fl. Aigypt. Arab. 43.—This Egypia® 
plant has been recently introduced into Florida where it has made 
itself at home, growing vigorously in waste ground about St. Augus: 
tine, Jacksonville, and Pensacola (no. 6496). At Pensacola Mr. 
Curtiss states “I found it growing rampant over bushes on the bay 
shore and fruiting freely.” } 
SOLANUM GLAUCUM Dunal in DC. Prodr. 13°: 
species which was first noted at Pensacola in 1897 whe 
abundant, though now thoroughly at home (no. 653°) 
SALPICHROA RHOMBOIDEA Miers in Hook. Lond. Jo 
1845.—This delicate solanaceous plant, native of Argenti 
was recently collected by Mr. Curtiss ( Oct. 3, 1899) im 
at Jacksonville (no. 6542). 
100.—A_ Brazilian 
n it was not 
ur. Bot. 4: 326 
ne Republic, 
low ground 
? Bot. GAZ. 24: 433-436. 1897. 
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