'ilil I iV,
f ' IV, :.l
i t i l *
’
u .
Polypodiacca’.
TAB. LXVII. A.
C H E IL A N T H E S . Presl.
C h e i l a n t h i s sp. Sw. et Auct.
Sori subglobosi, marginales, apice creme dentisve reflexo indusioque obtecti, minuti.
Indusium marginarium, scariosum, angustum, interius deliiscens.—Filices intra- et
extratropicæ. Rhizoma repens. Frondes sparsoe, herbaceoe v. tenuiter coriaceæ,
pinnatim composite, sæpe p ilis septatis hirsute. Venæ pinnatæ, internoe, tenues, simplices,
infimæ sæpe fu rca tæ venulisque divergentibus, apice soriferæ— Presl.
C. commutata. K ze— ( T a b . L X V I l . A.).
An extensive genus, and sometimes, when the sori are narrow and indistinct, easily confounded
with Notochloena.
Fig. 1. Fertile pinnule, seen from beneath ; f . 2. Portion of the same ; f . 3. Hair from the veins ;
/ . 4. Sorus, with the indusium laid open ; / . S. Sporangium ; f . 6. Sporules:—mngnyîed.
TA B . L X V I I . B.
H Y P O L E P IS . Bernh. Presl.
L o n c h i t i d i s sp. L . D i c k s o n iæ sp. Spr. C h e i l a n t h i s sp. Sw. et Auct.
A u ia n t i sp. Bory.
Sori in inferiore latere sinituni laciniarum aut dentium frondis, subglobosi. In d u sium
marginarium, semilunatum, scariosum, interius dehiscens. Sporangia
paginæ inferiori indusii affixa. (?)— Filices intratropicæ. Rhizoma repens. Frondes
sparsæ, herbaceoe, supradecompositæ, amploe, stipite rachibusque in H . repente muri-
catis. Venæ pinnatæ, tenues, subtus elevatæ, inferiores furcatæ, superiores simplices,
venula superiori sorifera.—Presi.
H. repens. Presl ( T a b . L X V I I . B .)— Cheilanthes. K a u lf
Presl has divided the Adiantum or Pteris group into two sections; the first having the
sori situated upon the outer margin of the frond, frequently on the teeth or lobes, the
latter in the sinuses of the lobes. Hypolepis and Lonchitis are referred to the latter.
Hypolepis is further dislinguislied from Cheilanthes, according to Presl, by tire sporangia
being inserted upon the under-side of the indusium. In our species, which we consider
the true H. repens, however, the receptacle is below the indusium, upon the apex of a
vein. We should say that Hypolepis, if deserving of constituting a genus, has the sori of
Lonchitis, (that is, placed in the sinuses,) and the venation of Cheilanthes.
F ig . 1. Upper, a n d /. 2, under-side of a fertile pinnule ; / S. Sori ; / 4. Indusium laid open, to
show the insertion of the sporangia ; / 5. Sporangium ; / 6. Sporules :—magnijied.
I ;