48 A PEMPTADE OF NEW CHINESE MONOCHLAMYDES. 
densifloris, bracteis inferioribus lanceolatis v. linearibus fructu plerum- 
que angustioribus superioribus ovatis acuminatis late albo-marginatis 
fructum latitudine aquantibus eoque dimidio circ. longioribus, fructi- 
bus stellato-pilosis erebre et conspicue glanduloso-tuberculatis oblongis 
anguste marginatis integris bicuspidatis. 
In alveis siccis sabulosis torrentium agri Pekinensis, a. 1866, in- 
venit Dr. S. W. Williams. (Exsice. n. 13489.) 
'This seems, from its peculiar achzenium, quite distinct from any of 
the Amurian or Central Asiatic species, described by Professor Bunge 
in the ‘Flora Amurensis ' or * Reliquie Lehmannianz.' The genus is 
not recorded by Maximowicz as found near Peking. 
ot4 IL. Thesium psilotoides, n. sp. ; radice lignosa, caulibus numerosis 
erectis 5—6-pollicaribus tenuibus a medio ramosis ramulis divaricatis, 
folis minimis (semilinealibus) squamiformibus appressis sphacelatis 
uninerviis secus caulem longe decurrentibus et angulos acutos effor- 
mantibus, floribus solitariis vel 2-3 aggregatis duas tertias lineze longis 
ramulos terminantibus bracteolis 5-foliis similibus perigonio brevioribus 
cireumdatis, perigonio sordide flavido ad medium 5-fido, stylo stami- 
nibus paulo breviore in stigma ovoideum potius quam capitatum sen- 
sim dilatato, nuce ovoidea longitudinaliter costata atque nervillis 
validis transversis reticulata lobis perigonii brevibus arcte appressis 
leviter umbonata. 
Prope monasterium buddhisticum ad colles Pakwan, supra urbem | 
Cantonem, autumno 1866, primus detexit T. Sampson: ad cacumina : 
. herbida eorumdem montium parce crescentem ego ipse legi d. 12 Julii, : 
1867. (Exsicc. n. 13749.) 
A very curious little species, of which but very few specimens have 
been found. The number of bracts or bractlets, all arising apparently 
from about the same plane, seems to indicate this as extremely distinct. 
WH IIL Salix (Amerina, fragiles, diandre,) Cantoniensis, n. sp. ; arbus- 
cula erecta, ramis cortice saturate castaneo obductis foliisque maturis 
glaberrimis, his exacte lanceolatis basi acutis apice sensim acuminatis 
bipollicaribus medio dimidium pollicem latis glanduloso-serrulatis | 
supra lucidis subtus opacis glaucinis subtilissime reticulatis petiolo [ 
2—4-lineali suffultis, stipulis lanceolatis caducis, amentis ¢ brevissime 
pedunculatis foliis paucis ssepius suffultis 1—1}-pollicaribus erectis | 
densifloris eylindrieis ab ima basi florentibus, rachi cinereo-lanata, 3 
squamis lanceolatis acutis pallide brunneis albo-hirsutissimis, filamentis 
