270 NORTH AMERICAN SPECIES OF JUNCUS. 
internodes are short, they become cespitose, where they are long, the plants are called creeping; differences in soil and 
moisture, however, seem considerably to influence the length of the internodes in the same species 
Page 427. For “J. pallescens,” wherever that name is used for one of our species, read J. acuminatus ; for “ var. 
fraternus,” var. legitimus ; for “J. Buckleyi,” J. leptocaulis ; and for “J. saginoides,” J. triformis, var. uniflorus. 
age 428. The “subgenus Juncellus” here and p. 436 must be cancelled. 
In J. pelocarpus and J. acuminatus the viviparous buds are the result a retrograde metamorphosis; in other 
cases they may be produced by insects, and are then much larger degeneratio 
Page 430. It is evident that the sculpture of the seeds is the result of “v structure of both the epidermis and 
the next inferior layer of cells, which both together probably constitute the testa; in some species it is more one, in 
others more the other stratum, which gives character to the appearance of the seed. My investigation of these points 
is not sufficiently advanced to furnish definite results; but I may state that what I have, in common with other 
authors, designated as the testa, properly seems to be the epidermis only, consisting of a single layer of cells, always 
larger than those of the layer under it, and never transverse. In most species the epidermis is thin, transparent, and 
closely adhering to the body of the seed; in others (J. Remerianus, Balticus, arcticus, etc.) it is thicker, swells up 
when moistened, and may then be detached ; in others again, those with tailed seeds, it is quite pan and loosely ad- 
hering to the body of the seeds, so as almost entirely to obscure their proper sculpture. In the first two classes the 
cells of the epidermis are about as wide as they are long, and only in part correspond with the sculpture “s Se seed ; 
they seem, however, to cause the markings designated by me as “levissime irregulariter reticulata” (p. 
1.1). In the third class these cells are narrow and much elongated, sometimes as long as the seed itself, ate [489] 
their thick walls form the ribs of these seeds. 
r. F. Buchenau, the acute observer of the Junci, has published the results of his observations on the seeds of 
the Gets species in Botanische Zeitung 25, p. 201 (June 25, 1867). He generally coincides with my views; but 
a new term for the crossbars of the reticulated seeds, transtilla, seems to him necessary, and for my semina lineolata he 
substitutes the words transverse reticulata, which is correct in itself and was used by me p. 431 and p. 482, IT. 1., but 
does not seem to me to express the predominant character of these seeds as well as the former term. He also mi- 
nutely describes the color of the seeds, a character which I have occasionally mentioned, but which seems to be in 
most species too slight, and even varying, to give it much importance. 
Page 432. J. brachycarpus, oxymeris, and falcatus ought to be classed under I.2. For “J. rudis” read J. 
microcephalus. J. dubius comes under I. 3. J. acutus belongs rather between I. 1 and I. 2, and J. Kelloggii near 
J. marginatus, III. 1. J. longistylis together with J. obtusatus may be properly classed under I. 2. The apparent 
necessity of these numerous changes is a proof of the difficulty z, properly classing the seeds; only completely ripe 
and well developed seeds ought to be used for these investigatio 
Page 433. It ought to have been stated that in the sstnabte arrangement all the species not ‘exprosaly marked 
as belonging to S-andenns sections, are 6-androus. 
dd . J. Lesueurii for subsp. Pacificus. 
Page 434. 10. J. Smithii comes under 1. Aphylli. 
Page 435. 27. J. repens was inadvertently classed with the 6-androus species. The Glomeruliflori would be 
thus 
* Triandri. (No. 26 b. & c. sepius uniflori ; No. 30, 3-6-andrus.) 
J. Kelloggii, n. sp. California. 
* neh ormis, n. sp. California, 
ic 
marginatus, Rostk. 
fs a A hy Torr. & Gr. 
* * Hexandri. 
J. falcatus, Mey. 
obtusatus, n. sp. California. 
z longistylis, Torr 
The other changes, — on this and the following page, the reader will please make for himself, following 
the text from p. 459 onw: 
Page 438. J. soning “The specimens said to come from New Jersey are from Z. Collins’ herbarium, and 
are, as Mr. Durand informs me, undoubtedly of European origin ; the only certain locality in North America [490] 
is the Californian one. 
Page 439. J. Remerianus. The New Jersey locality rests on the doubtful authority of Pursh ; I have seen no 
specimens collected farther north than Wilmington, N. Carolina, whence Mr. Canby has sent it, Hb. norm. 1. 
