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卆卆弌傍 卦指云慕朕村 厘議慕尺 厘議慕禰 TXT畠云和墮 序秘慕杏 紗秘慕禰

north american species of cactus(臼胆鷲繁嫺)-及9何蛍

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long�察�yellow ��sometimes reddish tinged���此�fruit ovate or subglobose�察�green�此�

seeds large ��3 mm。 long���察�flat and obovate�察�red。Type unknown�察�that of the 

old var。 valida is the Wright material in Herb。 Mo。 Bot。 Gard。 



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                               North American Species of Cactus 



     Sandy   ridges�察  �southwestern   Texas�察  �from   Eagle   Pass   and   head   of   the 

Limpia to El Paso�察�and southward into Chihuahua�察�Coahuila�察�and San Luis 

Potosi�察�also southern Mexico ��fide Hemsley��。Fl。 July。 

     Specimens examined�此�Texas ��Wright 416�察�478�察�of 1851�察�1852�察�Evans 

of 1891���此�San Luis Potosi ��Eschanzier of 1891��。 

     The var。 valida was described by Dr。 Engelmann without having seen 

C。   scheerii�察  �the   only  knowledge   of   that   species   being   obtained   from   the 

description of   Prince   Salm´Dyck   in   Cact。 Hort。   Dyck。�察  �which seemed   to 

indicate a smaller form�察�with fewer spines than the Texan form。However�察�

when visiting the collections of Prince Salm´Dyck�察�Dr。 Engelmann found 

original specimens of C。 scheerii which were exactly his var。 valida。So far 

as   collections   show   the   Texan   form   seems   to   be   more   robust   than   the 

Mexican�察�but the material is too scanty to justify such a generalization。Dr。 

Engelmann speaks of this species as ;a stately plant�察�by far the largest�察�of 

the   northern   Mamillariae;Its   tubercles   are   bright   green   and   in   beautiful 

contrast with the showy yellow spines。 

     41。 Cactus robustispinus ��Schott�� Kuntze�察�Rev。 Gen。 Pl。 261 ��1891��。 

     Mamillaria robustispinaSchott in Engelm。 Syn。 Cact。 265 ��1856��。 

     A   large   stout   plant�察  �simple   or   cespitose�此  �tubercles   large�察  �subterete�察�

nearly 2。5 cm。 long ��and about the same distance from each other���此�radial 

spines 12   to   15�察 �stout   and   rigid�察�18   to   30   mm。   long�察  �the  lower  ones   the 

stouter�察   �more    dusky�察   �straight    or  often    curved    downwards�察      �the   upper 

straight and fascicled�察�the solitary central spine stout�察�compressed�察�curved 

downwards   ��occasionally   an   additional   straighter   upper   one���察  �not   much 

longer than the radials�察�the base nearly 2 mm。 wide�察�all the spines horny 

and    black´tipped�察     �flowers    3。5   to  5   cm。   long    with   very   slender    and 

constricted tube�察�saffron´yellow�此�fruit green seeds large ��3 to 3。2 mm�察�long 

and    2   mm。    in  diameter���察    �obliquely    obovate     and   curved�察   �smooth     and 

brownish。      ��Ill。  Cact。   Mex。     Bound。     t。  74。  fig。   8�察 �seeds��Type�察     �Schott 

specimens in Herb。 Mo。 Bot。 Gard。 

     ;On grassy prairies on the south side of the Babuquibari Mountains�察─�

Sonora。Fl。 July。 

     Specimens examined�此�Sonora ��Schott of 1853´4��。 

     Dr。 Engelmann   remarks   that the   seeds   of this species   are   larger   than 



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                              North American Species of Cactus 



those of any other Mamillaria known to him。 

      42。 Cactus recurvatus ��Engelm。�� Kuntze Rev。 Gen。 Pl。 259 ��1891��。 

     Mamillaria        recurvispinaEngelm。          Syn。    Cact。     265     ��1856���察    �not 

Vries。Mamillaria recurvataEngelm。 Trans。 St。 Louis Acad。 ii。 202 ��1863��。 

     Globose      or  depressed´globose�察      �7。5   to  20  cm。    in  diameter�察   �simple�此�

tubercles ovate�察�deeply grooved�察�crowded�察�somewhat imbricate�察�10 to 12 

mm。   long�此  �radial   spines   12   to   20�察  �bulbous   at   base�察  �compressed�察  �rigid�察�

recurved or flexuous�察�8 to 18 mm。 long�察�whitish or horny�察�interwoven with 

adjacent   clusters�察  �central   spine   solitary   ��sometimes   an   additional   upper 

one���察 �stouter   and   longer   ��12 to   20   mm。���察  �dark�察 �mostly  strongly  recurved 

and   appressed   ��rarely   straightish���此  �flowers   about   3。5   cm。   long�察  �yellow 

��brownish´tinged outside���此�fruit unknown。Type�察�Schott specimens in Herb。 

Mo。 Bot。 Gard。 

     From Sonora to southern Mexico。Fl。 June´August。 

     Specimens examined�此�Sonora ��Schott of 1855��。 

         43。 Cactus salm´dyckianus��Scheer�� Kuntze。 Rev。 Gen。 Pl。 261 

                                          ��1891��。 

     Mamillaria      salm´dyckianaScheer          in  Salm�察   �Cact。   Hort。    Dyck。     134 

��1850��。 

     Subglobose�此  �tubercles   very   broad   and   retuse�察  �almost   2´parted   by   the 

tomentose groove�察�with axillary floccose wool�此�radial spines 7 or 8�察�very 

rigid�察  �widely     radiant�察  �somewhat      curved�察   �3  to  3。5   cm。   long�察  �in  older 

tubercles   3   to   6   additional   slender   and   straight   or   twisted   spines�察  �the 

solitary central spine very stout�察�erect�察�almost 5 cm。 long�此�flowers and fruit 

unknown。Type�此  �Scheer   says   that   this   plant�察  �brought   from   Chihuahua   by 

Potts�察    �unfortunately      perished�察─   �and   the   description     was   drawn     from 

fragments�察�which in those days were not apt to be preserved。 

     Chihuahua。 

     Specimens examined�此�Chihuahua �─�Salm of 1857 ;��。 

     The specimen referred to is in Herb。 Mo。 Bot。 Gard。�察�and reveals no 

additional     characters�察   �nor   can   the   label  be   interpreted�察   �except    that  it 

indicates   that   the   specimen   is   from   plants   cultivated   successfully   in   the 

gardens of Prince Salm´Dyck。 

     ���� Flower and fruit remaining central in the very woolly vertexof the 



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                              North American Species of Cactus 



plant。���� Central spine solitary or wanting。 

      44。 Cactus compactus ��Engelm。�� Kuntze Rev。 Gen。 Pl。 260 ��1891��。 

     Mamillaria compactaEngelm。 Wisliz。 Rep。 21 ��1848��。 

     Depressed´globose�察 �5   to   10   cm。   in   diameter�察  �simple�此  �tubercles   short´ 

conical�察�crowded�察�8 mm。 long�此�radial spines 13 to 16�察�rigid�察�recurved and 

appressed�察 �interwoven  with   adjacent   clusters�察 �whitish   or   horny�察 �10   to   20 

mm。 long�察�the erect central spine often wanting�此�flowers 3 to 3。5 cm。 long 

and   broad�察  �yellow   ��brownish   without���此  �fruit   oval�察  �green�此  �seeds   1。4   mm。 

long�察�smooth and yellow。 ��Ill。 Cact。 Mex。 Bound。 t。 74。 fig。 2�察�seeds��Type�察�

Wislizenus of 1846 in Herb。 Mo。 Bot。 Gard。 

     Mountains of Chihuahua。Fl。 June´July。 

     Specimens        examined�此     �Chihuahua       ��Wislizenus       of   1846���此    �also 

specimens cultivated in St。 Louis in 1848�察�1850�察�1854。 

          45。 Cactus radians。 ��DC。�� Kuntze�察�Rev。 Gen。 Pl。 261 ��1891��。 

     Mamillaria        radiansDC。        Rev。      Cact。     111      ��1829��。Mamillaria 

pectinataEngelm Syn。 Cact。 266 ��1856��。 

     Globose�察�3。5 to 7。5 cm。 in diameter�察�simple�此�tubercles conical�察�from a 

4´angled base�察�lower ones short ��4 to 6 mm。���察�upper flower´bearing ones 

longer     ��10  to  12   mm。���察   �terete   and   grooved�此   �radial   spines   16   to  24�察�

somewhat recurved from a bulbous compressed base�察�stiff and pectinate�察�

horny or whitish ��at length ashy���察�interwoven with adjacent clusters�察�those 

on lower tubercles about equal ��6 to 10 mm。���察�on flower´bearing tubercles 

elongated�察�mixed with a few stouter ones and fasciculated ��lower ones 10 

to 12 mm。 long�察�upper ones 12 to 18 mm。 long and forming an apical tuft���察�

centrals none�此�flowers over 5 cm。 long and about 6 to 7。5 cm。 in diameter 

when   expanded�察  �bright   sulphur´yellow�此  �fruit   ovate   and   green�察  �about   12 

mm。 long�此�seeds compressed�察�brownish smooth and shining�察�1。8 mm。 long。 

��Ill。 Cact。 Mex。 Bound。 t。 11��Type unknown�察�that of M。 pectinata Engelm。 

is the Wright material in Herb。 Mo。 Bot。 Gard。 

     Extending      from    the   hills   along    the   Lower     Pecos    to  El   Paso�察�

southwestern Texas�察�southward through Coahuila and San Luis Potosi to 

southern Mexico。 

     Specimens examined�此�Texas ��Wright 226 of 1849�察�also of 1852�察�Evans 

of 1891���此�Coahuila ��Palmer of 1880�察�Mrs。 Nickels���此�San Luis Potosi ��Parry 



                                               31 


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                              North American Species of Cactus 



& Palmer 265�察�Eschanzier of 1891���此�also specimens cultivated in St。 Louis 

in 1853�察�in Mo。 Bot。 Gard。 in 1892�察�and in Harv。 Bot Gard。 

     Even   in   the   absence   of   the   type   I   have   ventured   to   refer   Mamillaria 

pectinata   Engelm。   to   this   species。Dr。   Engelmann   had   concluded   that   the 

two    were    ;not   sufficiently   distinct�察─  �and   the   examination      of  Mexican 

forms       which      pass     as    C。     radians     abundantly        confirms      this 

conclusion。Besides�察        �every   character    in   the  original    description    of   C。 

radians     applies    exactly    to  these    Mexican      plants   and    to  our   Texan 

specimens as well。Aside from the fact that the Mexican spe
卦指朕村 貧匯匈 和匯匈 指欺競何 壘��0�� 家��0��
隆堋響頼��紗秘慕禰厮宴和肝写偬堋響��
梁椣戻幣�� 梁心弌傍議揖扮窟燕得胎��傍竃徭失議心隈才凪万弌誌育断蛍�輌臆惨軼僑〃�燕慕得珊辛參資誼持蛍才将刮襲潜��範寔亟圻幹慕得 瓜寡追葎娼得辛參資誼寄楚署衛、持蛍才将刮襲潜填��