734 ADDITIONS AND CORRECTIONS. 



Page 395. After OROBANCHE MINOR insert 



0. RAM6SA, L. Often branched, 6' high or less, of a pale straw-color ; flow- 

 ers 3-bracteate, the lateral bracts small; calyx 4-toothed, split at the back; 

 corolla pale blue, 6 - 8" long. On the roots of hemp and tobacco ; Ky. (Int. 

 from Eu.) 



Page 421. After LAMIUM PURPUREUM insert 



L. INTERMEDIUM, Fries. Resembling L. purpureum, but the calyx-teeth 

 longer than the tube, the rather narrower corolla without a hairy ring within 

 near the base, and the nutlet longer (3 times as long as broad). Cultivated 

 fields near Hingham, Mass. (C. J. Sprague). (Adv. from Eu.) 



Page 427. Insert in the generic key 



5- Cladotlirix. Flowers perfect, minute, axillary. Densely white-tomentose. 



Page 430. Insert after the genus Frcelichia 



5. CLADOTHRIX, Nutt. 



Flowers perfect, 3-bracted. Sepals 5, erect, rigid-scarious, somewhat pilose. 

 Stamens 5, the filaments united at base; anthers large, 1-celled. Stigma 

 large, capitate, 2-lobed. Utricle globose, indehiscent. Densely stellate- 

 tomentose low herbs or woody at base, with opposite petiolate leaves and very 

 small flowers solitary or few in the axils. (Name from K\d8os, a branch, and 

 0pt, hair, for the branching tomentum.) 



1. C. lanuginosa, Nutt. Prostrate or ascending, much branched; 

 leaves round-obovate to rhomboidal, 3-10" long. Central Kan. (Meehan) 

 and southwestward. 



Page 435. Salsola Kali. This species has been found in Emmet Co., 

 Iowa (Cratty), at Yankton, S. Dak. (Bruhin) , and. in river-bottoms in N. W- 

 Neb. and central part of the Dakotas. 



Page 437. After Eriogonum annuum insert 



2. E. A116ni, Watson. Perennial, white-tomentose throughout, the tall 

 scape-like stem repeatedly dichotomous above ; radical leaves lanceolate, long- 

 petiolate, the upper in whorls of 4 or 5, ovate to oblong-ovate, very shortly 

 petiolate, much reduced above; involucres mostly sessile; flowers glabrous, 

 yellow, the segments elliptical. Near White Sulphur Springs, W. Va. 

 \T. F.Allen). 



Page 445. Asarum Canadense. In this species there are rudimentary 

 subulate petals, alternate with the calyx-lobes. 



Page 463. Celtis Mississippiensis. Common in low river-bottoms 

 of W. Mo. (F. Bush) ; described as having a very smooth trunk, like a 

 sycamore, and soft yellowish brittle wood, not coarse-grained as in C 

 occidentalis. 



Page 491. Under Pinus add 



10. ' P. ponderdsa, Dougl., var. SCOpuldrum, Engelm. Leaves in 

 twos or usually threes from long sheaths, 3-6' long, rather rigid ; staminate 

 flowers V long; cones subterminal, 2 -3' long, oval, often 3-5 together, the 

 prominent summit of the thick scales bearing a stout straight or incurved 

 prickle. Central Neb. and westward in the Rocky Mountains. A large tree 

 with very thick bark. 



