STAPHYLEACEAE 451 



seen in herbarium specimens. The arU of the seed is circular and cut or dissected to the base 

 into very narrow or filiform segments. 



Locs. — Cushenbury Sprs., Parish; Providence Mts., T. Brandegee ; Clark Mt., Munz 12,982; 

 Mt. Laura near Erskine Creek, Kern Co., Purpus 5520 ; Surprise Canon, Panamint Eange, J. T. 

 Howell 3950 ; Black Canon, "White Mts., Duran 2645. Nevada: Soda Springs Canon, Mineral Co., 

 ShocMey 588 ; Pyramid Lake, Lemmon. 



Eefs. — Glossopetalon spinescens Gray, PI. Wright. 2:29, t. 12B (1853;, type loc. Frontera, 

 N. Mex., Wright 1347; Jepson, Man. 610 (1925). G. nevadenae Gray, Proc. Am. Acad. 11:73 

 (1876), type loc. n. "Washoe Co., Nev., Lemmon 4- Case. Forsellesia spinescens Greene, Erythea 

 1:206 (1893). 



STAPHYLEACEAE. Bladder-nut Family 



Shrubs or small trees. Leaves opposite, pinnately compound, with 3 to several 

 leaflets, usually with minute often caducous stipules and stipels. Flowers regu- 

 lar, perfect. Calyx-lobes and petals 5. Stamens 5, inserted outside a large disk. 

 Ovary superior, 3-celled. Fruit a capsule, thin, opening at apex. Seeds very 

 hard, with shining testa; endosperm present. — Genera 5, species 21, all continents 

 except Africa and Australia. 



1. STAPHYLEA L. Bladder-nut 



Shrubs. Flowers white, in drooping raceme-like clusters terminating the 

 branchlets. Calyx deeply 5-parted, the lobes erect, whitish. Petals erect. Ovary 

 consisting of 3 carpels united in the axis, their long styles lightly cohering. Cap- 

 sule large, inflated, bladder-like, 3-celled, the cells 1 to 4-seeded. — Species 7, North 

 America, Europe and Asia, temperate. (Greek staphule, a cluster.) 



1. S. bolanderi Gray. Sierra Bladder-nut. Glabrous shrub 6 to 10 feet 

 high, or a slender tree up to 20 feet high; leaflets 3, roundish-ovate, acute, finely 

 serrate, 1^4 to 2^^ inches long; pedicels % to 1 inch long; sepals several-nerved, a 

 little shorter than the petals; petals 6 lines long, with broad claws as long or longer 

 than the elliptic blade; style and stamens much exserted; bladder 3-homed, 1^4 

 to 2 inches long. 



Caiion sides, 2000 to 4500 feet: Sierra Nevada from Siskiyou Co. to Tulare 

 Co. May. 



Field note. — On the South Fork Kaweah Eiver bushes up to 12 feet high are frequent; at 

 Big Spring on that fork an individual of unusual height (20 feet) was observed in 1911. The 

 trunk was 1 inch in diameter at 2 feet above the ground and only slightly in excess of that 

 diameter at the ground. The leaflets of sterile shoots are often 4 to 6 inches long. This species 

 is sometimes called California Balloon Bush. 



Locs. — Dunsmuir, L. E. Smith; McCormic bridge, Stanislaus River, Blasdale; Merced River 

 near Grouse Creek, Jepson 8352 ; Pulpit Rock, Merced River, Jepson 3123 ; Fresno Flats, East- 

 wood; Auberry, Fresno Co., Jepson 12,954; Cedar Creek, North Fork Kaweah River, Jepson 

 601; betw. Clough Cave and Garfield Forest, South Fork Kaweah River, Jepson 4657. 



Eefs. — Staphylea bolanderi Gray, Proc. Am. Acad. 10:69 (1874), type loc. McCloud River, 

 Shasta Co., Bolander; Jepson, Fl. W. Mid. Cal. ed. 2, 251 (1911), Man. 611, fig. 609 (1925). 



ACERACEAE. Maple Family 



Deciduous trees or shrubs with opposite leaves. Flowers regular, polygamous 

 or dioecious, borne in racemes, corymbs or fascicles. Calyx generally cleft into 

 5 segments, the petals as many or none. Stamens 3 to 10, borne on the edge of a 

 disk or hypogynous. Pistil 1 with a 2-lobed 2-celled ovary and 2 styles. Ovary 

 superior, developing a long wing from the summit of each lobe and thus ripening 

 into a double samara; samaras separable at maturity, the wings serving to rotate 

 them rapidly in the air and further their horizontal flight when carried away by 

 the wind. — Genera 2, species 121, northern hemisphere. 



Bibliog.— Pax, F., Aceraceae in Engler & Prantl, Pflr. 4"«:l-89, figs. 1-14, tt. 1-2 (1902). 

 Greene, E. L., Some Californian Maples (Lflts. 2:248-254,-1912). Plowman, A. B., Is the Box 

 Elder a Maple? (Bot. Gaz. 60:169-192, pis. 5-10,-1915). 



