334 Plants of San Francisco. [zoe 



Plate 3, 



Fig. 24, — Vascular system in the anterior part of the worm. 



In this and the following figures, the letters indicate as follows: 

 V. V. — Ventral primary vessel, which is not pulsating; 

 d. V, — Dorsal primary pulsating vessel, covered with glandulous 



cells and pigment spots; 

 p. g. v. a.— Anterior perigastric vessel; 

 p. g. V. p. — Posterior perigastric vessel; 

 g, a. — Gastric vessel. 



■ 



Fig. 25. — Vascular system in somite IV, showing the branches of 

 the ventral vessel and their connection with the dorsal vessel. 



Fig. 2(5. —Vascular system in somite VI, showing the ventral and 

 dorsal vessels and their connection by only one perigastric 

 vessel. 



Fig. 27.— Vascular system in one of the central somites, show- 

 ing the connection of the ventral and dorsal vessels through 

 two pair of perigastric vessels in each somite; also the gastric 

 vessels, two pairs in each somite and one pair between two 

 somites. 



Fig. .?5.— Vascular system in somite VII, showing the connecting 

 perigastric vessels, two pairs in each somite. 



Fig. 29.— Posterior part of the vascular system, showing the" un- 

 developed perigastric vessels. 



^ig- Jo.—Suiroaa/pesin's—naiurd size of the worm. 



GROWING S: 

 FRANCISCO. 



FLOWERING 



BY KATHARINE BRANDEGEE. 



The collections on which this list is founded were made by the 



bt 



and although probably not complete must be very nearly so As 

 a record of the rapidly changing flora of the principal seaport of the 

 west coast of America its interest will be greater in the'future than 

 at the present time. 



The city of San Francisco is co-extensive with the county, and 



t A few plants collected by others are duly credited where mentioned. 



> ^ 



