îlî
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T R O C H O P T E R I S . Gardn.
S p o ra n g ia ovata, in laciniis ioborum 2 inferiorum frondis biseriatim disposita, basi
vasculoso-reticulata, vertice ad medium completo-annulata, liinc longitudinaliter
dehiscentia. In d n s ium nullum. S p o ru læ triangulares, striatæ, scabrellæ.—
Filicula B ra s ilien sis ; fr o n d e fe r e unciali, pilosa, h-lohata, lobis 2 inferioribus
laciniato-sectis, laciniis soriferis, lobis reliquis integris sterilibus. (Venæ ra d i-
a toe repetitim fu r c a tæ f Gardn.
Trochopteris elegans. Gardn. Herb. B r a z il, n. 4035, et in H ook. B ond. J o um . o f
B o t. V. i. p . 74. T ab. 4.
H a b . Clefts of rocks o n th e summit of the Serra de Natividade, in the province of Goyaz,
Brazil. M r Gardner.
This beautiful and highly curious and new Fern, Mr Gardner has distinguished from
Anemia ( T ab. N o st e . XC.) chiefly in consequence of the different habit. In Anemia he
observes there are two kinds of fronds, the barren and fertile ; here there is only one kmd
of frond, and that a simple, or only a lobed one, the two lower and deeper lobes (corresponding
with the fertile ones in Anemia) bearing the sporangia on their laciniatcd
margins.
T a b . c i v . a Fig. 1. Trochopteris elegans ; nat. size : f . 2. Simple fro n d : f . 3, Portion o f the
fertile lobe ; f . 4. Sporangium : f . b. Sporules more or less magnified.
TAB. CIV. B.
M O H R IA . S w .
OsMüNDÆ. B am . S c h ra d . A d i a n t i . B.
S p o ra n g ia sessilia, ovato-globosa, nuda, prope margines concavos paginæ inferioris
frondis non c o n tra c te inserta, distincta, reticulata, vertice annulata, extus longi-
tudinallter dehiscentia.— Frondes coespitosæ, s tip ita tæ , bipinnatæ v el suU r ip in -
natifidæ, subtus piloso-paleaceæ. Pinnæ oblongæ, obtusæ, p a ten te s. Pinnulæ
ovatæ, subcuneatæ, inciso-lobatæ, costatæ ; venis dichotomis id tim is ante apices
d en tium evanescentïbus ; in fro n d ib u s fe r tilib u s sporangiferis. Rachis a la ta .
Pinnæ stériles latiores, plance.
th u r ifra g a . Sw . S y n . B i l .p . i.5 9 ,e t 8S5.— Adiantum Caffroruni, B . Osmunda
thurifraga. Barn.
H a b . South Africa.
Of this Genus, in many respects allied to Trochopteris, and consequently to Anemia, a
second species, M. crenata, Desv., is found in Madagascar. Both are, however, confined to
the southern hemisphere.
Tab. c i v . B.—Mohria thurifraga. Fig. 1. Portion of sterile frond; / 2. Portion o f fertile
frond seen from beneath ; / 3. Smaller portion of do. ; / 4. Apex of a vein hearing a sporangium ;
/ . S. Sporangium ; / 6. Sporules ;—all more or less magnified.