94 Wriiings of Edward L. Greene. [zoE 



smaller seeds of H. limosa, but those of the terrestrial form of 

 aquatilis are hardly known. A form of limosa was collected in 

 May, 1892, in a trench by the side of the railway about a mile 

 north of Suisun. The plants formed a matted mass several feet 

 in length, and were fruiting abundantly from extremely minute 

 cleistogamous flowers — no others were to be found. Mr. 

 Greene's station was not far distant. Both the locality and the 

 rarity of this plant show it to be in all probability a recent 

 introduction. 



Ardostaphylos insularis,'^ patula & viedia Greene are like 

 nearly all the recent species proposed, mere variations of the 

 older ones of which several are maintained with difficulty. 



Rhododendron Sonomcnse Greene is R. ocddentalis Gray. 



Pholisma depressum Greene f is P. arenariiun Nutt. 



Dodecatheon Clevelandi^ Cnsickii, cruciatiim, patulum and 

 paiiciflorum^ are forms of D. Meadia ly. If the circumscissile 

 dehiscence of the capsule prevailing in most of the western forms 

 of Dodecatheon be made a specific distinction, it was already 

 named before Mr. Greene began, but it has been shown that this 

 form of dehiscence grades into the ordinary one.| 



Gentiana siiperba^Ore^ne. is credited at Harvard to G. lanceo- 

 lata Griseb. 



Collomia diversifolia Greene is a stout form of C. hetero- 

 phylla. The type was collected by the writer. 



Gilia parvula Greene is G. viscidula Gray. 



Navarretia viicrocarpa Greene is Gilia filicaulis Torr. 



Navarretia prolifera Greene is a large-flowered form of Gilia 

 divaricata. 



Navarretia nigellaformis Greene is a yellow-flowered form of 

 Gilia cotuhefolia. It is common about Antioch and in Lake 

 County, and has been collected at San Luis Obispo by Miss 

 M. M. Miles. 



Navarretia siibuli^era, leptantha foliacea, & hamata Greene 

 are forms of Gilia at rady hides, some of them connecting rather 

 closely with G. viscidula. 



* BuU. Cal. Acad, ii, 494. 

 t Bull. Cal. Acad, i, 198. 

 X Zoe i, 19. 



