454 



SOLANACEAE 



petioles % to i^ as long as the blade ; corolla 5 to 9 lines long, its limb 3 to 5 lines 

 broad, its tube short (14 to Va as long as the throat) ; filaments glabrous or slightly 

 puberulent towards the base, inserted at summit of corolla-tube. 



Stream beds and sand dunes, 20 to 1500 feet : coastal Southern California from 

 Santa Barbara Co. to San Diego Co. ; Colorado Desert. South to Lower California, 

 east to Arizona. Mar. -June. 



EelationsMp to Nicotiana bigelovii. — In habit Nicotiana clerelandii is a somewhat diminu- 

 tive N. bigelovii, says Helen-Mar Wheeler, who adds that it is also like that species in leafage, 



inflorescence and capsule. The coroUa-limb in Nico- 

 tiana elevelandii (3 to 5 lines broad) is, however, en- 

 tirely different in lobation from the limb (% to 2 

 inches broad) of N. bigelovii. The stamens in the for- 

 mer are inserted at summit of the proper tube, in N. 

 bigelovii in the upper part of the corolla-throat. 



Loes.— Coastal S. Cal.: Santa Barbara (Bot. Cal. 

 2 :476) ; Playa del Key, Los Angeles Co., Braunion 875 ; 

 West Riverside, C. U. Wilder 174; ChoUas Valley, San 

 Diego Co., Cleveland. Colorado Desert: JleCoy Wash, 

 e. Riverside Co., Hall 5967; Palm Springs of San Ja- 

 cinto, Parish 20,011; sw. Colorado Desert, Orcutt. 



Eefs. — NicoTiAMA CLEVELAXDH Gray, Syn. Fl. 2: 

 242 (1878), type loc. ChoUas Valley, San Diego, Cleve- 

 land; Jepson, Man. 888 (1925). 



6. N. bigelovii Wats. Indian Tobacco. 



(Fig. 447.) Stem commonly branching, 114 

 to 4 feet high ; herbage with glandular indu- 

 ment, very ill-smelling; leaf -blades oblong- 

 ovate and acute to narrowly lanceolate, 2 to 7 

 inches long, the cauline ones sessile (rarely 

 some lower ones or all tapering to a shortly 

 winged petiole or distinctly petioled), the basal 

 leaf-blades petioled or sometimes sessile ; flow- 

 ers fewer than in N. acuminata, mostly scat- 

 tered racemosely along the branches; calyx 

 with slender teeth "3 as long to as long as the 

 tube ; coi-olla-tube 1 to 1% inches long, the limb 

 3,4 to 2 inches wide; filaments unequally in- 

 serted in the tipper half of the corolla-throat, 

 glabrous; capsule obtuse, shorter than the 

 calyx. 



Flood-plains of rivers, on mesas and open 

 valley floors and in gullies in the foothills, 50 

 to 3500 feet, almost throughout cismontane California : Sierra Nevada foothills 

 from Amador Co. to Kern Co.; Great Valley; Coast Ranges from Siskiyou Co. to 

 San Luis Obispo Co.; coastal Southern California from northern Los Angeles Co. 

 to San Diego Co. ; also (probably as immigrant) in the western Mohave Desert. 

 June-Oct. 



Geog. note.— In the American Anthropologist (1:403-405,-1912) W. A. Setchell differen- 

 tiates three varieties of Nicotiana bigelovii. The form of the central Sierra Nevada foothills, 

 a low spreading plant with short internodes, is considered typical, that is, it rests on the formal 

 type of the species collected at Knights Ferry, Stanislaus County. The form in the North Coast 

 Ranges, a taller plant (2 to 6 feet high) with erect branches and long internodes, he separates as 

 a distinct variety (later called var. exaltata Setchell). In both this and the typical form the ovary 

 shows a tendency to be 3-celled in the sense that a few capsules in most vigorous plants exhibit 

 this feature. In the var. wallacei of Southern California, a plant of more slender habit and smaller 

 flowers, he finds the capsule to be uniformly 2-cened. These three varieties are described as geo- 

 graphically segregated, although the representation in the Great Valley connects geographically 

 the North Coast Range area and the central Sierra Nevada foothills, while the representation in 

 the South Coast Ranges connects geographically the North Coast Ranges and the coastal Southern 



Fig. 447. NIC0TI.4NA BiGELOvn Wats. 

 a, fl. branchlet, X % ; 6, leaf, X V2 ; 

 c. long. sect, corolla-tube and -throat, 

 X 1. The point of insertion of stamen 

 filaments in corolla-throat is indicated 

 by shadow marks. Below this point 

 the filaments are adnate to the base of 

 the corolla as line-like ridges. (In N. 

 attenuata the filaments disappear be- 

 low point of insertion at summit of 

 tube.) 



