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north american species of cactus(臼胆鷲繁嫺)-及4何蛍
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clavate toward the apex and acute ��the clavate top at length deciduous���察�
intermixed with loose wool of about the same length and forming a small
tuft on the top of the plant which includes and partly hides flowers and
fruit�此�flowers whitish to light pink�察�almost central�察�very small ��6 mm。 in
diameter���察 �much reduced ��3 to 5 sepals�察 �5 petals�察 �10 to 15 stamens�察 �3
stigmas���此�fruit 8 to 12 mm。 long�此�seeds 1。5 mm。 long�察�black and shining。
��Ill。 Cact。 Mex。 Bound。 t。 1 and 2。 figs。 1´4��Type�察�the specimens of Wright
in Herb。 Mo。 Bot。 Gard。
On naked mountain tops and sides�察�extreme southwestern Texas ��Val
Verde County to El Paso�� and southward into Coahuila and Chihuahua。
Specimens examined�此 �Texas ��Wright 227 of 1849�察 �also of 1852�察�
Nealley of 1892���此�Coahuila ��Bigelow of 1853���此�Chihuahua ��Pringle 212���此�
also growing in Mo。 Bot。 Gard。 1893。
The plants densely covered above with delicate ashy´gray spines and
with naked tuberculate base are readily recognized。It still remains an open
question whether the flowers are developed from the axils of tubercles of
the same season or the last ones of the preceding season。Dr。 Engelmann
inclined to the latter view�察�as all the other characters of the plant associate
it with the ;lateral´flowered; species�察 �and in the absence of definite
observation we have retained it there。If the nearly central flowers indicate
that they are produced from growth of the same season the species would
seem to be allied to Coryphantha�察 �in which group its small flowers and
small tubercles would be anomalous。
13。 Cactus micromeris greggii ��Engelm。��。
Mamillaria micromeris greggiiEngelm。 Syn。 Cact。 261 ��1856��。
Larger ��2。5 to 5 cm。 in diameter�� and becoming oblong�察 �with larger
globose´ovate tubercles ��2 to 2。5 mm。 long���察�fewer rigid spines all radiant
��interior 5 to 7 shorter and stouter�察�1 to 2 mm。 long�察�the outer 15 to 18�察�3 to
4 mm。 long���察�and fruit 1。5 to 2 mm。 long。 ��Ill。 Cact。 Mex。 Bound。 t。 2。 figs。
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North American Species of Cactus
5´8��Type�察�Gregg 508 in Herb。 Mo。 Bot。 Gard。
Mountain ridges near Saltillo�察�Coahuila。Said by Budd to occur within
the southern borders of Pecos County�察�Tex。
Specimens examined�此�Coahuila ��Gregg 508�察�Palmer of 1880��。
It is a question whether this variety does not merely represent an older
and better developed plant than those upon which the species is based。Mr。
Harry I。 Budd�察�who has made extensive collections of Texan and Mexican
Cacti for the market�察�reports that it is impossible to separate sharply the
variety from the species in the field�察�and regards the difference merely as
one of age。Unfortunately�察 �only living material of the species could be
examined�察�but its characters seem well sustained even in the most vigorous
plants�察�some of which reach the size of the variety。Through this variety the
species is brought very near the following�此�
14。 Cactus bispinus。Mamillaria microtheleMuhlenpf。 Allg。 Gart。
Zeit。 p。 11 ��1848���察�not Lem。 ��1838��。
Differs from the last form ��var。 greggii�� chiefly in its cespitose habit�察�
much larger tubercles�察 �and two unusually stout and short central spines
��fide Engelmann�察�who examined specimens in Coll。 Salm´Dyck��。
Credited to Mexico in general�察�but said by Budd to occur within the
southern border of Pecos County�察�Tex。
** Central spines present and one or more hooked。 ��Mostly globose
and simple plants ��occasionally somewhatcylindrical��。
15。 Cactus wrightii ��Engelm。�� Kuntze。 Rev。 Gen。 Pl。 261 ��1891��。
Mamillaria wrightiiEngelm。 Syn。 Cact。 262 ��1856��。
Globose or depressed globose ��top´shaped below���察 �3 to 7。5 cm。 in
diameter�察 �simple�此 �tubercles 10 to 12 mm。 long�察 �with naked axils�此 �radial
spines 8 to 12�察 �white ��the upper dusky´tipped���察 �pubescent�察 �8 to 12 mm。
long central spines mostly 2 ��usually side by side and divergent���察�rarely 1
or 3�察 �scarcely longer�察 �hooked and reddish´black�此 �flowers 2。5 cm。 long�察�
bright purple�此 �fruit about 2。5 cm。 long�察 �somewhat subglobose�察 �purple�此�
seeds 1。4 mm long�察�black and pitted。��Ill。 Cact。 Mex。 Bound。 t。8。 figs。 1´
8��Type�察�Wright of 1851 in Herb。 Mo。 Bot。 Gard。
High plains and rocky places�察�from the Upper Pecos�察�east of Santa Fe�察�
N。 Mex。�察 �southward through extreme southwestern Texas ��between the
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North American Species of Cactus
Pecos and El Paso���察�and into Chihuahua ��near Lake Santa Maria��。
Specimens examined�此�New Mexico ��Wright of 1851�察�Rusby of 1880���此�
also growing in Mo。 Bot。 Gard。 1893。
Dr。 Engelmann calls attention to the fact that this species is closely
allied to the Mexican C。 zephranthoides ��Scheidw。���察�but in the absence of
material representing the latter species no comparison can be made。In
descriptions of the Mexican species the differently colored flowers and the
much longer spines suggest differences that an examination of fruit and
seed characters may still further emphasize。
16。 Cactus goodrichii ��Scheer�� Kuntze。 Rev。 Gen。 Pl。 260 ��1891��。
Mamillaria goodrichiiScheer in Salm Cact。 Hort。 Dyck。 91 ��1850��。
Globose or ovate�察�5 to 7。5 cm。 high�察�subsimple�此�tubercles ovate�察�short
��3 to 5 mm。���察 �somewhat corky and persistent�察 �with dense wool in the
young axils containing 5 to 8 stiff bristles�此 �radial spines 11 to 15 ��the
uppermost one sometimes wanting���察 �white and rigid�察 �5 to 7 mm。 long�察�
entangled with adjoining clusters�察�central spines 3 or 4 ��often solitary in
young plants���察 �brownish´black��the upper ones divergent and straight
��rarely showing a tendency to hook���察 �the lower longer ��9 to 10 mm。���察�
stouter and hooked ��usually upwards���此 �flowers 12 to 18 mm�察 �long�察 �the
petals yellowish´white with red midribs�此�fruit clavate and scarlet。 ��Ill。 Cact。
Mex。 Bound。 t。 8。 figs。 9´14��Type�此�Scheer says that the plant was brought
from the Island of ;Corros; ��Cedros�殖� by Dr。 Goodrich�察�and ;unfortunately
perished in the gardens�察─ �which generally means that there is not a
fragment of the type in existence。
In dry ravines�察 �from San Diego County�察 �California�察 �southward
throughout Lower California and the neighboring islands ��including
Guadalupe Island��。;Llavina。;
Specimens examined�此 �California ��Parry of 1850�察 �1875�察 �Agassiz of
1872�察�Parish 450 of 1882 at Vallecito���此�Lower California ��Gabb 18 of 1867�察�
Brandegee of 1889 on Magdalena Island�察�and 240 of 1890 from San Jose
del Cabo���此�also specimens cultivated in Gard。 Salm´Dyck。
By a misprint in Cact。 Mex。 Bound�察 �the specific name appeared as
;Goodridgii�察─�and this error appears in almost every subsequent mention
of the species�察 �even in Watson's Bibliographical Index�察 �although in Syn。
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North American Species of Cactus
Cact。 and other references by Dr。 Engelmann the correct form appears。
17。 Cactus pondii ��Greene��。
Mamillaria pondiiGreene�察�Pittonia�察�i�察�268 ��1889��。
Oval or cylindrical�察 �from low to 30 cm。 high�察 �simple or sparingly
branched�此 �radial spines 20 to 30�察 �white and slender�察 �centrals 4 or 5�察 �the
longest over 25 mm�察�long�察�rigid and strongly hooked�察�dark brown above
the middle�此�flowers nearly 5 cm。 long�察�bright�察�scarlet�此�fruit unknown。Type�察�
Pond specimens in Herb。 Greene。
Cedros Island�察�off the west coast of Lower California。Fl。 February。
Unfortunately�察 �the type specimen has been mislaid�察 �so that no
examination of it could be made。Evidently related to C。 goodrichii�察 �but
differing in its much more robust habit�察 �more numerous radials�察 �much
longer spines�察�and larger scarlet flowers。
18。 Cactus barbatus ��Engelm。�� Kuntze�察�Rev。 Gen。 Pl。 261 ��1891��。
Mamillaria barbataEngelm。 Wisliz。 Rep。 22 ��1848��。
Depressed´globose�察�about 4 cm。 in diameter�察�simple�此�tubercles 8 mm。
long�察 �with naked axils�此 �radial spines very numerous ��50 to 60���察 �in two
series�察�6 to 8 mm。 long�察�the outer ��about 40�� slender but rigid and white�察�
the inner ��10 to 15�� a little stouter and yellow�察�usually one central spine�察�
stout and erect�察�hooked downwards�察�brownish�此�flowers 18 to 20 mm。 long�察�
rose´red�此 �fruit oblong�察 �10 to 12 mm。 long�察 �green ��when mature�殖��此 �seeds
minute�察�dark brown and lightly pitted。 ��Ill。 Cact。 Mex。 Bound t。 6。 figs。 9´
12��Type�察�Wislizenus of 1846 in Herb。 Mo。 Bot。 Gard。
Central Chihuahua。Fl。 May�察�in cultivation。
Specimens examined�此 �Chihuahua ��Wislizenus of 1846�察 �1850���此 �also
specimens cultivated in Baumann's Garden in 1857�察�1858�察�also growing in
Mo。 Bot。 Gard。 1893。
Dr。 Engelmann observed a curious intermediate character in the origin
of the flowers of this species�察�the first ones of the season appearing in the
axils of the last tubercles of the preceding year�察 �while the later ones
develop from the axils of the fir
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