II. PSEUDO-ENTOPHYTA, ETC. 51 



by the ^^^ to the g-g 1 ^ of an inch in breadth. The rows measured up to the 

 of an inch in length. 



Of a doubtful character, as an entophyte, are also some vegetable bodies which I 

 observed floating in a honey-colored liquid of the proventriculus of a larva of 

 Arctia Isabella, a lepidopterous insect, which I found hybernating beneath a stone 

 in the early part of the month of January. 



These bodies in outline resemble the caudex, with its connected radicles, of certain 

 phanerogamous plants (PI. X. 26). 



The caudex-like portion was irregularly oblong or fusiform, brown in color, 

 opaque, and measured from the ^-g 1 ^ to the gi- of an inch long, and the TTr or 



to the f-ffV-o f an i ncn broad. 



The filaments were hyaline, cylindrical, irregular in their course, and branch- 

 ing. They rarely presented the appearance of a partition, and possessed amor- 

 phous or very faintly granular contents, with an occasional coarse, isolated granule. 

 Their diameter was pretty uniformly about the TT J^ of an inch. Mixed with 

 them, generally separated, frequently attached, were numerous sporuloid bodies, 

 oblong in form, two or three times as long as they were broad, and having the 

 same structure as the filaments. 



The spores of many cryptogamic plants form a very frequent constituent of the 

 ordinary contents of the bowels of many animals. 



It is not improbable that an occasional new species of cryptogamic plant which 

 grows externally, but has escaped observation, might be discovered in the exami- 

 nation of the contents of the intestine of such animals as the earth worms, her- 

 bivorous myriapoda, herbivorous insects, batrachians, and chelonians. 



Among a variety of cryptogamic forms, which I have observed mixed with the 

 contents of the bowels of a number of animals, are several, which, from the singu- 

 larity of their appearance and the probable importance of directing attention to a 

 source which may lead to the discovery of new external plants, I will briefly 

 notice. 



One of these is a long cylindrical articulated body, occasionally found mixed with 

 the food of Julus, Pulydesmus, Passalus, and Lumbricus. It is purplish-brownish 

 in color, with from 9 to 14 articulations, slightly constricted at the conjunction of 

 the latter. The extremities are obtusely angular, or one is prolonged into a sort of 

 pedicle or foot-stalk, expanded at what is the free end in the specimens. The con- 

 tents of the articulations consist of a central cylindroid, amorphous, transparent 

 mass, or one or a few aggregated globules, inclosed in a darker amorphous matter 

 which appears to be a continuous structure of the cell-wall (PI. X. 4, 5). 



The length of these bodies is about the ^^ of an inch by the ^Vir f an mcn i n 

 breadth. The articulations are equal to the diameter, but are sometimes larger, 

 up to the 2^3- f an inch in length. 



A second remarkable vegetable organism was observed several times among the 

 contents of the ventriculus of Passalus cornutus and Julus marginatus. This was 

 a Gonium-\ik.e body, of a dark olive-brownish color, composed of from nineteen to 

 twenty-seven articulations arranged in four rows side by side, the two outer uniting 

 at one end in the form of U, and inclosing the other two, which, in some cases, 



