(186) 
To Solms'!), however, this opinon seemed inadequate. For 
»the position of the hair-scars in all Polyphysa, particularly in Ace- 
tabularıa polyphysoides and A. Moebii, where they form a whorl on 
each side oft the coronal prominences, shows that we have to deal 
in it simply with the parts of a complete peculiar body — the 
coronal prominences«; and »to this is to be added the late appea- 
rance of the sporangial rays in the development of the cap of 
A. mediterranea, in which an originally undifferentiated primordium 
breaks up into corona superior and an under portion which, long 
after the commencement of the growing out of their hairs, divides 
itself into sporangial ray and corona inferior.« Hence »it is impossible 
to close one’s eyes to the view that the whole chamber with all its 
parts represents a complete formation, if, indeed, one may not take 
it as the homologue of a single whorl.« 
In fact, Falkenberg maintains the superior and inferior 
coronae as belonging to the main-axis, while Solms regards 
them as only forming a part of the cap-rays. 
Whichever of these opinions may be correct, we may conceive 
the prototype of the alga in question to have consisted of 
a main axis bearing whorls of foliar appendages, which, 
after discharging its function as an assimilative organ, 
become converted into a gametangium, which represents 
a cap.) Thus the cap of Acetabularia serves a double physio- 
logical function, viz.: 
1. By storing up food as an assimilative organ; and, 
2. By producing and discharging gametes as a reproductive 
organ. 
These and other points of physiological importance can only 
be clearly established after careful observation of this interesting 
genus of Algae with the help of more ample materials. 
Tökyo, April 16, 1899. 
Lichenes novi rarioresque. 
Ser. II. 
Scripsit Edw. A. Wainio. 
*Usnea florida (L.) Wain. f. strigosa (Ach.) Wain., Etud. 
Lich. Bres. I p.4. Ad ramulos arborum prope Les Quilles 900 m 
s. m. in Argentina (Dr. F. W. Neger: n. 121). Fert. 
Var. perplexans (Stirt.) Wain., I. c. p. 5. Ad ramos Notho- 
fagi obliquae prope Concepcion in Chili (Neger: n. 308). 
Chlorea Poeppigii (Nees et Flot.) Nyl., Syn. Lich. p. 275. 
Frequenter in ramis Araucariae circ. 1000 m s. m, in Andibus prope 
Valdivian (Neger: n. 303). Fert. 
Parmelia (Menegazzia) foraminulosa Krempelh., Neue 
Beitr. Flecht. Neu-Seel. p. 451, Aufz. Flecht. Wawra p. 440. Sporae 
4:nae, long. circ. 0,025, crass. 0,014—0,16 mm. Paraphyses pulchre 
ramoso-connexae, gelatinam abundantem in KHÖ turgescentem 
!) Solms, loc. cit. p. 17. 
®) A. H. Church: The Structure of the Thallus of Akomeris dumetosa, Lamour. 
(Annals of Botany, IX, 1895, p. 598.) 
