132 BOTANY. 



from North Mexico, through Texas, to Arizona. It has been said that its 

 flowers, contrary to the habit of the genus (which has diurnal flowers — i. e., 

 open in sunlight), are nocturnal, which, however, is now positively denied. 



FICOIDEJ5* 

 Mollugo verticillata, L. — Point of Mountains, Arizona (723). 



UMBELLIFERiE. 



Eeyngium Wrightii, Gray (PI. Wright. 1, p. 78).— Erect, smooth, 

 pale, somewhat branched ; lower leaves narrowly spatulate, regularly pec- 

 tinate or toothed, with each tooth terminating in a bristle; stem-leaves 

 lanceolate, 3-5' long, deeply cleft.with the divisions terminating in a bristle ; 

 upper leaves shorter, more deeply and palmately parted ; petals blue, with 

 a long, inflexed point ; leaflets of the involucre longer than the head ; inner 

 bracts slightly exceeding the flowers. — Sanoita Valley, Arizona (603), at 

 6,500 feet altitude. 



MusENiUMf teachyspermum, Nutt. — Branching from the base ; radical 

 leaves ascending, petioled, pinnately parted, with the segments pinnatifid; 

 rachis broad, 1-2" ; fruit nearly as broad as long, and slightly roughened ; 

 involucel of 8-10 leaflets, 2-4" long, narrow, but slightly dilated up- 

 ward. — Colorado (726). 



Cicuta macul.ata, L. — Nevada and Utah. 



Carum GAiRDNERr, Benth. & Hook. — Nevada, where, as in Utah, the 

 tubers are an important article of food with the Indians. 



* Ficoidb^:. — "A miscellaneous group, chiefly of fleshy or succulent plants, with mostly opposite 

 leaves and no stipules ; differing from Caryophyllacew and Portulacacece by having distinct partitions to 

 the ovary and capsule (which are therefore 2-many-celled) ; the petals and stamens sometimes numerous 

 in the manner of Cactacece (but the former wanting in most of the genera) ; agreeing with all ihese 

 orders in the campylotropous or araphitropous seeds ; the slender embryo curved partly or completely 

 round a mealy albumen." — PI. Cal. p. 250. 



t Musenidm, Nutt. — Calyx-teeth conspicuous. Petals clawed, obovate, point inflexed. Stylopodia 

 small, depressed, styles rather short. Fruit ovate, slightly compressed on the side, commissure rather 

 broad; carpels 5-angled, a little compressed on the hack, with the primary ribs filiform, rather promi- 

 nent, lateral ones contiguous. VittsB many. Carpophore bifid. Seed compressed a little on the back, 

 with the sides a little incurved.— Perennial, caespitose herbs, branching from the base, smooth. Leaves 

 pinnate or bipinnatifid, segments pinnatifid. Many-rayed umbel compound. Involucre none. Invo- 

 lucel of a few short leaflets. Flowers white or yellow. — Bentham & Hooker. 



