294 mosses (Gepp). [Porotrickwm 
2. P. Quintasi Broth, in Bol. Soc. Brot. viii. p. 181 (1890). 
St. Thomas's Island. — A small quantity growing with P. lopldioides 
on bark at the foot of trunks in dense woods at an elevation of 
2500 ft. at Novo Destino ; without fr. Dec. 1860. No. 124, in part. 
3. P. elongatum. 
ffomalia elongata Welw. et Duby in Geneve, Mem. Soc. Phys. 
XXI. ii. p. 429. fc. ii. fig. 3 (1872). 
G-OLUNGO Alto. — Living on old tree-trunks and rocks in the vicinity 
in the primitive woods of Quisucula near Bango : without fr. Feb. 1855. 
No. 146. In company with other mosses, especially with tufts of 
Racqpilum, on rather young trunks in the woods of Catombe, Serra de 
Alto Queta ; without fr. June 1857. No. 167- With Thuidium gratum 
on the older trunks in the elevated primitive woods of Serra de Alto 
Queta, at an elevation of 2200 ft. ; without fr. Jan. 1856. Xo. 143, in 
part. On dead branches near Zengas do Queta (Sange) : with fr. July 
1857. No. 1466. 
Our specimens appear to belong to Anasfrephidium, a section of 
Porotrichum. 
29. THAMNIUM Schimp. in Br., Sch. etGuemb. Bry. Eur. V. 
(1851-55). 
1. T. variifolium. 
Homalia rarii folia Welw. et Duby in Geneve, Mem. Soc. Phys. 
XXI. ii. p. 429. t. iv. fig. 5 (1872). 
PuNGO ANDONGO. — In company with Lejndopilumangolemeoii moist 
rocks by rivulets in Mata de Pungo : without fr. May 1857. No. 88- 
On rocks by the Casalale rivulet within the presidium at an elevation 
of 3200 ft. ; without fr. Feb. 1857. No. 89. Also Alga No. 141. 
Goluntio Alto. — Of a very fine green colour, sometimes without 
flagella?, sometimes exceedingly flagelliferous ; on old trunks and on 
the ground (humus) in the shadiest parts of the primitive woods of 
Mata de Quisucula at an elevation of 2400 ft. ; without fr. Jan., July 
and Sept. 1855, Feb. 1856. No. 159. 
Our specimens are very closely allied to Thamnium Hildebrandti 
Jaeg. et Sauerb., of which Porotrichum pterops Rehm. (Muse. Austro- 
Afric. nos. 329 ( Neckera ), 62] and 621 b) appears to be a synonym. 
30. H00KERIA Smith in Trans. Linn. Soc. ix. p. 275 (1808). 
1. H. huillensis Gepp. sp. n. 
Sterile. Laxly crespitose. Plants lurid-brown below, glaucous 
green above, yellowish at apex. Stems 3 cm. long, vaguely 
branched ; branches 6 to 8 mm. long, and with the foliage 3'5 to 
4 mm. wide ; leaves variously curved, unaltered when dry, easily 
moistened ; lateral leaves 2 mm. long, - 75 mm. wide, ovato- 
ligulate subacute suddenly cuspida to-acuminate, with margins 
serrulate above the middle and limbate to the apex with a sub- 
lutescent biseriate limb, with nerves ,' (ho length of the leaf, 
dorsally serrulate and prominent at their apices, with upper cells 
lax O'Oib mm. diam. rotundato-hexagonal and pseudo-incrassate 
witli chlorophyll, and lower cells oblong; median leaves 1*5 by 
0-6 mm. lanceolate-acuminate subentire, with nerves smooth 
evanescent about the middle of leaf, and cells longer. 
