ERRATA AND ADDENDA. 



Page 2, 3d line from bottom for "graiidular" read "glandular." 

 Page 10, under Lophotocarpus, 1st line, for "verticels" read "verticils" and 

 2d line, for "inclosing" read "enclosing." 

 Page 14, under 6th line for "waiting" read "wanting." 

 Page 16, under Paspalum, 2d line, read "spikes" for "spike." 

 Page 19, under P. miliaceum, 2d line, read "sheaths" for "sheath." 

 Page 23, under 31. sobolifera, 3d line, read "2' -3'" for "2"-3"." 

 Page 28, under Bouteloua, Key, read "spikes" for "spikelets." 

 Page 29, add : 



35a. BULBILIS Raf. 



A low, creeping, perennial grass with the staminate and pistillate spikelets 

 on distinct culms, the former forming 2-4 one-sided spikes on a relatively 

 long-exserted culm, the latter 2-3 clusters on a very short culm. 



1. B. dactyloldes (Nutt.) Raf. Staminate spikes 2"-2i" long, 2-3-flowered, 

 sharp-pointed : pistillate spikes subtended by long filiform bracts, scarious- 

 dilated at base : the outer glumes indurated. — Two patches found as a waif 

 along the Santa Fe Railroad east of Shetfield. May-Sept. 

 Page 36, under Lolium, 2d line, for "join" read "joints." 

 Page 37, under A, repens, 5th line, for "forms" read "form." 

 Page 39, 3d line from bottom for "scales" read "scale." 

 Page 39, under Hystrix for "elymoides M. & B." read "patula Moench." 

 Page 41, under C. strigosus robustior, 1st line for "8'" read "8"." 

 Page 47, 19th line, for "spai-ganoides" read "sparganioides." 

 Page 48, under C. trichocarpa, 1st line, for "bract" read "bracts." 

 Page 52, No. 41 should read "C. cephaloidea." 



Page 53, add : 46a. C. siccata Dewey. Culms slender, erect, 2°-3° high : 

 leaves l"-2" broad: spikes 3-4, 2i"-4" long, distinct, silvery-brownish, the 

 staminate flowers basal and numerous, or sometimes occupying whole spikes : 

 perigynia 2J" long, lanceolate, strongly winged. — Locally common on a dry 

 hill near Courtney. June. 

 Page 66, under Juglandaceae, 4th line, after "1-ovuled" add "ovary." 

 Page 67, under H. minima, 2d line, for "one" read "ones." 

 Page 70, under Quercus, 4th line, "hydrids" should be hybrids." 

 Page 73, under Humulus, 3d line, read "Pistillate flowers two together in 

 the axil of a foliaceous bract." 



Page 83, under A. blitoides, 2d line, for "bract" read "bracts." 

 Page 88, the authority for Cerastium brachypodum should be (Robinson) 

 Engelm. 

 Page 96, under C. montanum, 2d line, "seeded" should be omitted. 

 Page 99, the authority for R. palustris^ is (L.) Bess. 

 Page 106, under P. pentandra, 3d line, for "bottom" read "bottoms." 

 Page 110, for "Caesalpinaceae" read "Caesalpiniaceae." 

 Page 113, under TrifoMum, 9th line, read "plant" for "plants." 



227 



