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BUTTerwICK & dANIeL: FLOrA OF SOUTHerN BLACK MTS., ArIzONA 317<br />
Viscaceae<br />
Phoradendron californicum Nutt. Native parasitic perennial herb; BBS, HdwS, MdS. DB<br />
4498, 4624, 5915, 6649.<br />
Plants were parasitic on Senegalia greggii.<br />
Phoradendron coryae Trel. (P. villosum (Nutt.) Nutt. ex engelm. subsp. coryae (Trel.)<br />
wiens) Native parasitic perennial herb; MdS. DB 6694.<br />
Plants were parasitic on Quercus turbinella.<br />
Vitaceae<br />
Vitis arizonica Engelm. Native perennial vine; dOw. DB 4525.<br />
Although rare in the southern Black Mountains, this species is locally common in portions of<br />
grapevine Canyon.<br />
Zygophyllaceae<br />
Fagonia laevis Standl. Native shrub; CBS. Richardson & Ayers 1 (ASC).<br />
Kallstroemia californica (S. Watson) Vail. Native summer ephemeral herb; MdS. DB 6490.<br />
Kallstroemia parviflora Norton Native summer ephemeral herb; HdwS. Hovezak s.n.<br />
(MNA).<br />
Larrea tridentata (DC.) Coville (L. divaricata Cav. subsp. tridentata (dC.) Felger) Native<br />
shrub; BBS, CBS, LdwS, HdwS, MdS. DB 4701, 6431. Fig. 3.<br />
Tribulus terrestris L. Introduced winter ephemeral herb; CBS, MdS. Deaver 2814 (ASC).<br />
ACKNOwLedgMeNTS<br />
we are grateful to the Phoenix district Office of the Bureau of Land Management for logistical<br />
support for fieldwork in 1980 and 1986. Subsequent field studies were funded, in part, by the<br />
California Academy of Sciences. For their assistance in the field, we are most thankful to our cocollectors:<br />
B. Bartholomew, w. gehres, d. Hillyard, w. Hodgson, A. Phillips, B. Phillips, d. Simonis,<br />
and B. welsh.<br />
The following individuals provided invaluable support: T. Columbus (identification of an eastwood<br />
collection of Hilaria rigida), A. day (identification of numerous collections of Gilia),V.<br />
Funk and C. Kelloff (images of Palmer specimens at US from Union Pass), L. Makings (information<br />
on specimens of Mimulus at ASU, J. Pebworth (information about and a photograph of the only<br />
known saguaro in the Black Mountains), r. Peck (logistics and information), and A. Sanders (verifying<br />
the identification of a specimen of Allium at UCr). we thank the following photographers<br />
who kindly made their images available for our use, either by granting us permission or by making<br />
them available on the internet via CC By-NC 3.0 license at http://swbiodiversity.org/seinet/:<br />
Patrick Alexander (Mentzelia involucrata and Thamnosma montana), erin Butler (Carnegiea<br />
gigantea), S. Carnahan (Larrea tridentata), Mark elvin and John Anderson (Salvia eplingii), C.<br />
webber (Grayia spinosa), Max Licher (Aquilegia chrysantha), Keir Morse (Coleogyne ramosissima),<br />
Liz Makings (Mohavea confertiflora), daniela roth (Psorothamnus fremontii), and Aaron<br />
Schusteff (Salvia mohavensis). we thank the curators and staff of the following herbaria for loans,<br />
images, and/or hospitality during our visits: ArIz, ASC, ASU, CAS, deS, gMdrC, MNA, UCr,<br />
US.
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