FREE BOOKS

Author's List




PREV.   NEXT  
|<   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60  
61   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   >>   >|  
es small, yellow; spores nearly smooth, violaceous-brown, 5-6 mu. This unique form is near the fuligos which it resembles, especially when sessile, in its intricate sporangia. The spores also are those of the common _Fuligo septica_. The habit is however entirely different. Mr. Fetch describes clusters in Ceylon, hanging free, four to six cm. in length! =2. Badhamia= (_Berkeley_) _Rost._ 1852. _Badhamia_ Berkeley, _Trans. Linn. Soc._, XXI., p. 153. 1875. _Badhamia_ Rostafinski, _Monograph_, p. 139. Sporangia simple; peridial wall simple, thin, breaking irregularly; capillitium formed of abundant, richly anastomosing tubules, filled throughout their entire length with calcareous granules; the nodes often feebly represented; stipe poorly developed or wanting entirely; columella, except in forms sometimes assigned to the sub-genus _Scyphium_, poorly developed or none; spores frequently adherent in clusters. The whole genus calls for careful and protracted study; and the present so-called species are like something new on the world; as full of vagaries as though but just entered upon their phylogenetic race. This genus is closely related to _Physarum_, but differs in having the capillitium calcareous throughout. Forms occur and are included here, in which the capillitium, especially in some parts, is physarum-like, physaroid. Nevertheless, the distinctions hold good as a rule, and are at once diagnostic. In capillitial differentiation the badhamias are definite and beautiful. The net in a typical species, as _B. papaveracea_, is throughout uniformly evenly tubular, the calcareous deposits delicate in the extreme, presenting, as the spores disappear, an elegant trabecular structure as if to support the persisting peridium if not the original content. In other forms the capillitium is physaroid, with swollen nodes, but heavily calcareous but not quite throughout. _Badhamia_, _Physarum_, _Tilmadoche_, _Craterium_ present a consistent group, of which _Physarum_ is the generalized expression. Berkeley's idea of the genus was expressed as follows: "Peridium naked or furfuraceous. Spores in groups, enclosed, at first, in a hyaline sack." Rostafinski, while accepting Berkeley's generic name, redefined it, emphasized the calcareous capillitium, and made reference to the spore-adherence only to assert that Berkeley's description was, in this particular, based on mistaken observation. In some
PREV.   NEXT  
|<   36   37   38   39   40   41   42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60  
61   62   63   64   65   66   67   68   69   70   71   72   73   74   75   76   77   78   79   80   81   82   83   84   85   >>   >|  



Top keywords:

capillitium

 

calcareous

 

Berkeley

 

spores

 

Badhamia

 

Physarum

 
simple
 

length

 

clusters

 
species

present

 

poorly

 

developed

 

physaroid

 
Rostafinski
 

diagnostic

 
reference
 

capillitial

 

emphasized

 

typical


redefined
 

beautiful

 

distinctions

 

badhamias

 

definite

 
differentiation
 

adherence

 

mistaken

 

differs

 

closely


related

 

observation

 

included

 

physarum

 

assert

 
Nevertheless
 

description

 
papaveracea
 

swollen

 

heavily


content

 
Spores
 

groups

 

original

 

Tilmadoche

 

furfuraceous

 
generalized
 

expression

 
Peridium
 
Craterium