 | Review of the Order of Hydrophylleæ
George Bentham (1835) Transactions of The Linnean Society of London 17: 267-282 |
 | XL.—Notices of British fungi
M J Berkeley and C E Broome (1850) Annals And Magazine of Natural History 5: 455-466 |
 | XXV. On the Effects of certain Agents on Insects, in a Letter addressed to William Spence, Esq., F.R.S., &c
John Davy (1851) Transactions of The Royal Entomological Society of London 6: 195-212 |
 | Studies in the flora of Lower California and adjacent islands
Alice Eastwood (1929) Proceedings of the California Academy of Sciences 18: 393-484 |
 | The Templeton Crocker Expedition of the California Academy of Sciences, 1932. No. 22. The vascular plants from San Nicolas Island, California
John Thomas Howell (1935) Proceedings of the California Academy of Sciences 21: 277-284 |
 | Observations on plants and insects in north-western Baja California, Mexico, with descriptions of new bees
(1941) Transactions of The San Diego Society For Natural History 9: 337-352 |
 | The genera of Hydrophyllaceae and Polemoniaceae in the southeastern United States
K A Wilson (1960) Journal of the Arnold Arboretum 41: 197-212 |
 | Revision of the Phytomyza syngenesiae group (Diptera, Agromyzidae), including species hitherto known as 'Phytomyza atricornis Meigen'
(1967) Stuttgarter Beitraege Zur Naturkunde 177: 1-28 |
 | A flora of the San Bruno Mountains San Mateo County, California
Elizabeth Mcclintock and Neil Fahy (1968) Proceedings of the California Academy of Sciences 32: 587-677 |
 | Notes on three species of Heterocampa Doubledaywith description of a new species (Lepidoptera: Notodontidae)
(1971) Proceedings of The Entomological Society of Washington 73: 249-254 |
 | A REVISION OF THE PHACELIA CRENULATAE GROUP HYDROPHYLLACEAE FOR NORTH AMERICA
N D Atwood (1975) Great Basin Naturalist 35: 127-190 |
 | The biology of Hoplitis (Robertsonella) simplex (Cresson), with a synopsis of the subgenus Robertsonella Titus
John L Nuff (2009) Journal of Hymenoptera Research 18(2): 151-166 |
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