374 Plants of San Francisco. fzoR 



ARISTOLOCHIACEyE. 



443 Aristolochia Caltfornica Torn Pac. R. Rep. iv, 128. 

 Hills near Lake Merced, southern shore of Laguna de la Puerca, 

 and Strawberry Hill in Golden Gate Park- March. ** Dutchman's 

 Pipe/' ** Pipe-Vine." 



This plant, though common, is usually overlooked by collectors; 

 the brownish flowers appearing before the leaves, not being readily 

 -distinguished from the twigs of Corylus, etc., about which it climbs. 

 Its presence may be detected by the hovering of the common blue- 

 black butterfly, Papilio Phile7ior, wdiose conspicuous caterpillar 

 feeds exclusively on it, and is so fond of its fruits as rarely to per- 

 mit one to ripen. 



ORCHIDEyE * 



444 



Watson 



275. Dr. Behr says this plant grew in the western part of the city, 

 near Woodward's Gardens. " Coral Root." 



445. Habenaria elegans (Lindl. Orch. 285). Mission Hills, 

 South San Francisco, Golden Gate Park. " Rein Orchis." 



446. Habenaria leucostachys (Lindl. Orch. 288). Swamps 

 of Visitacion Bay. June— August. " Rein Orchis." 



447. Habenaria sp. Point Lobos to Fort Point, and also at 

 the " Little Sur " in iMonterey County. June — September. 



This is a low stout plant with a dense short spike of whitish fra- 

 grant flowers, sepals incompletely 3-nerved, column short and al- 

 most beakless, glands of the pollen masses oblong. 



448. Spiranthes Romanzoffiana Cham. Linn^ea, iii, 32. 

 About the hills of the Presidio and Lake Merced. June— August- 

 " Ladies' -tresses." 



449- Epipactis gigantea^s^ Dougl. Hook. Fl. Bor.-Am. ii, 202, 

 t. 202. 



IRIDE^. 



450. Iris longipetala Torr. Pac. R. Rep. iv, 144. Common 



on grassy slopes about San Francisco. February— Tulv "Iris" 

 "Flag," "FIower-de-Luce." 



451- Iris Douglasiana Herbert in Bot. Beech. 395. Presidio 

 hills, Mission Hills, Point Lobos. March— June. 



Zoe, ii, 4. 



