430 
“ bifariously disposed” as in C. Whippleanum. The leaves of the 
stems and primary branches are not bifarious in either, but some- 
what evenly distributed ; it is only the true terminal branches that 
show this peculiar phyllotaxis. In the less developed forms these 
are either absent, which is rarely the case, or so small as to be 
easily overlooked, giving them a more strict appearance than they 
would otherwise have. 
In this connection reference may be made to a letter, which 
accompanies the types, from Lesquereux to Sullivant, calling his 
attention to the discrepancies to be observed in f/. 9, 4, of the 
Pacif. R. R. Reports, suggesting that the lower figures represent 
quite closely his Hypnum Bolanderi and the upper something else. 
On the back of this letter Sullivant writes that while the four 
upper figures do represent his new species, Hypnum leuconeurum, 
the others are those of the true Hypnum Whippleanum, “ which 
Lesquereux never saw!” It is difficult to decide whether Les- 
quereux was right in his contention or not, but one thing is cer- 
tain: the figures to which Sullivant refers as the wue Hypnum 
Whippleanum are not drawn with his accustomed accuracy. 
3. CLAOPODIUM CRISPIFOLIUM (Hook.) R. & C. 
HHypnum crispifolium Hook. Musc. Exot. 1818. 
HHypnum ramulosum Hampe in Muell. Syn. Musc. 2: 486. 
1851. 3 
Claopodium crispifolium R. & C. Musc. Am. Sept. 50. 1892. 
Thuidium crispifohum Kindberg in Cat. Can. Plants, 6: 186. 
1892. 
In spreading mats, rufescent below, yellow-green above; stems 
5-8 cm. long, creeping, stoloniferous, closely pinnately branched ; 
branches simple or pinnate, spreading, attenuate, paraphyllia few, 
Squamiform, serrate; stem leaves densely imbricated, when dry 
crispate-incurved, when moist erect-spreading, incurved, abruptly 
contracted above a broadly ovate auriculate-cordate decurrent base, 
linear-lanceolate, crowded with a long serrate hyaline point; mar- 
gins serrate-dentate, undulate-rugose; costa narrow vanishing in 
the acumen ; leaf-cells small, round- quadrate, stoutly unipapillate 
on both surfaces ; branch leaves similar but smaller ; pericheti 
bracts loose, scarious, oblong to oblong-lanceolate, abruptly long 
loricate-filiform acuminate Margins border 
: , ed below by a narrow 
band of rhombic-hexagonal celis, lightly costate; pedicel 234-3 
