ADDITIONS AND CORRECTIONS 1119 



Page 



pidulous; spike 4-10 cm. long; bracts densely hirsute; seeds ovate-lenticular, 

 almost black, shining, 2 mm. long. AQUATIC FORM: Stem decumbent, 

 rooting at the nodes; ochreae glabrous or above water somewhat hirsute; 

 petioles 4-5 cm. long, glabrous; leaf-blades 6-10 cm. long, ovate with a 

 cordate base, glabrous; peduncles and bracts less hairy than in the ter- 

 restrial form. P. plattensis Greene, (transitional stage between the 

 aquatic and the paludose form). Drying lakes and ponds: Minn. Mont. 

 N. M Neb. Jl-S. 



237 For Persicaria incana (Schmidt) S. F. Gray, substitute Persicaria 



tomentosa (Schrank) Bicknell. 

 237 Add under B. bistortoides the synonym-: B. americana Raf. 



242 After C. incisum insert: 



24. Chenopodium Bonus-Henricus L. Perennial; stem stout, 

 8-3 dm. high, mostly simple, glabrous; leaf-blades broadly triangular- 

 hastate, palmately ribbed, green, 5-12 cm. long, entire or sinuate; flowers 

 in dense paniculate spikes; seeds all vertical, with obtuse edges, black, 

 shining. Waste places: N. S. Ont. N. Y.; Utah; nat. from Eur. Je-S. 



243 Before Cycloloma insert: 



3a. AXYRIS L. 



Annual monoecious herbs. Leaves alternate with entire blades. Sta- 

 minate flowers in terminal globerules or spikes; perianth hyaline, 3-5- 

 parted; sepals obovate or elliptic; stamens 2-5. Pistillate flowers solitary 

 in the axils or mixed with staminate ones; bracts distinct; sepals 3 or 4, 

 hyaline, somewhat accrescent; stigmas 2, filiform; utricle enclosed in 

 the perianth, compressed, cuneate-obovate, short-winged at the apex; 

 pericarp membranous. Seed erect, obovoid; embryo horseshoe-shaped. 



1. A. amaranthoides L. Stem 3-7 dm. high, racemosely branched 

 ab^ve, stellate-pilose: leaf -blades ovate or lanceolate, 3-8 cm. long, thin, 

 finely stellate-pilose, those of the floral branches reduced, 4-6 mm. long; 

 fruit 3 mm. long, with a short retuse wing at the apex. Waste places 

 and fieids: Man. Sask. Neb.; nat. from Siberia. Jl-Au. 



244 After K. scoparia insert: 



4. Kochia alata Bates. Annual; stem 5 dm. high or more, puberu- 

 lent; leaves linear-lanceolate, 3- ribbed, strigose beneath; inflorescence 

 dense, its branches villous: calyx with membranous wings, 1-2 mm. long, 

 dirty-white, erose-dentate, obovate. Waste places: Neb. Colo. Probably 

 an introduced species from the Old World related to K. arenaria, but the 

 identity not established. 



258 Common name of Quamodidion should be W T ILD or FALSE FOUR-O 'CLOCK. 



259 In key under Allionia, instead of 2. A. floribunde read 2. A. floribunda. 



263-4 Limnia has been included in both Claytonia and Montia and nearly 

 all of the species have been named under Montia with the same specific 

 names. 



265 For N. parviflora read N. parvifolia and for Claytonia parviflora and 

 Montia parviflora read C. parvifolia and M. parvifolia. 



265-6 For O. nevadensis, O. minima, and 0. pygmaca read O. nevadense, 

 O. minimum, and O. pygmaeum respectively. 



268 In description of Alsine for "alternate leaves" read "opposite leaves.' 1 



274 The generic name Alsinopsis is antedated by several older names 

 but it has been impossible to establish which is the oldest tenable one 

 for the genus. 



275 Before A. laricifolia insert: 



9a. Alsinopsis bifiora (L.) Rydb., comb. nov. Caudex much 

 branched; stems decumbent, puberulent; leaves obtuse, somewhat fleshy, 



