ProtOCO UV. PALMELLA01 I (W( 
•_'. P. botryoides Kirchn. in Cohn, Krypi I Schles. Bd.2, 
Erste Haiti.-, in:; i 1879) : W. ei G. S. West, l.c. 
Microhaloa botryoides Kiitz. Phys. General. 169(1848); Tab. 
Phyc. i. (1845 9), 6, t. 7. 
Liiwha.- A liyht LM'fi n coating on the inside of wooden 
reservoirs, often remaining dry, in the gard< a of Dr. Mend< - A 
bouse Oct. L858 No. 128. 
)/).\<>r//) </:./:. 
XV. RIVULARIACEiE. 
1. CALOTHRIX Ag. (1824). 
1. C. fusca (Ktttz.) Horn. <■( Flah. in Ann. Sci. Nat. 7 sene, 
Bot. iii. 364 ( L886); W. el G. S. West, l.c. 
Mastichothrix fusca Kiit/.. in Phyc. General. 232 (li 
Pungo Andongo. In Batrachospermo gracillimo ad lapidei 
mersas in rivulo de Tangue ips. Prsesidii ; May 1857. No 3. 
2. C. breviarticulata W. el <■. S. Wesl in Journ. Bot. 1897, 
p. 240. 
Pi ngo Andongo. Epiphytica in Mougeotia angt 'en ad ramulos 
Podostemacearum i Tristicha trifaria Tul. tin rivulis Prsesidii (Cas 
March 1857. No. 105. 
The habit, together with the gradual attenuation of the 61s 
brings this nearesl to C. (Nag.) Born, et Flah 
but its smaller size, its shorter filaments, and its very ehorl celh 
distinguish it. The younger plants, which have only attained a 
length of about 100 /j. and a thickness oi 5*5 7 - 5 /*., have th< 
only 2-3 times shorter than the diameter. It also comes near to 
C. endophytic*! Lemmermann in Forschungsberichte Biolog. Station 
zu Ploii, iv. 184 (1896), but lias a different sheath and very short 
filaments ; the heterocysts are also very distinct. 
3. C. epiphytica W. et G. S. Wesl in Journ. Bot. 1897, p. 240. 
Mossamedes. Epiphytica in '/ Bp., freq. in Btagnis puris 
ad ripas Hum. Bero : Aug. 1859. No. 190. 
2. DICH0THRIX Zanardini (185 
1. D. olivacea Born, el Flah., I.e., 375 (1886); W. el I - 
West, l.c. 
Calothrix olivacea Hooker (1845). 
l'i ngo Andongo. -Inter Scytonema Myochrousvar. chorogra} 
in snnnnis rupibus Praesidii : Feb. 1857. No. 6. Etiam inter Scyto- 
nema Millet ad ropes vulc. humectatas prope Cacella ips. Praesidii ; 
Feb. 1857. No. 7- 
2. D. gypsophila Born, ei Flah., l.c. .-.77 8 (1886); W. et < - 
West, l.c. 
Schizo8iphon gypsophilua Kiit/.. Phyc. Gener. 234, t. 6, 
(1843). 
This seems to have been luxuriantly developed, and n 
."> mm. in height ; the filaments were not incrusted with lime, as 
is often the case wit b I his specii s. 
