iiossES HORTUS JAMAICENSIS. 5iy 



The following generally belong to the third order, hpaticx, of the class cryp- 

 Ugamia : 



VI. JUNGERMANNIA. 



Tills was so named from Louis Jurgermannus, professor of botany at Altorff. 



Gen. char. Male fiowers sessile, clustered on the leaves, stem, froii.d ^Temnle 

 capsule peduiu-led,- naked, arising from the sheiith, fonr-valved ; seeds attached 

 to the elastic filanientSi Swanz has twemy-eiglu species of this genus natives of 

 Jamaica. 



I.'ADJAKTHIOIDES/ ADlANTHUM-LIKn;, 



Erect, slightly divided ; leaves ovate, obHque, liliate; fruit terminal. 



2, CRIST.ATA. CRESTED. 



Creeping, with erect bnmches; leaves lanceolate-acute, spread incumbent^ 

 serrate on the upper margin, behjw lobed, connivent, <;rebitd. 



3. PROSTRATA. PROSTRATE. 



Filiform, nearly simple, creeping, prostrate, pinnate; leaves alternate, ovate, 

 entire. 



4. FALLENS. PALE. 



Erect, branched ; fronrds pinnate, caulescent ; leaves incumbent, roundishj; 

 entire, half-hearted at the base ; siieaths one-leated, retuse, funnel-form. 



5. SIMPLEX- StMPLE. 



Caulescent; fronds pinnate, filUoim, creeping; fronds erect, simple; leaves? 

 ovate, distant, -serraie-cihate ; fruit tenuina). 



6. PERFOLIATA. PEIiFOMATE, 



Caulescent; branches compound, pinnate, crowded, erect, undivided; leaves", 

 perfoliate^ nicumbent, one-rowed, ovate, entire. 



7. CONNATA. CONNATE. 



Caulescent, pinnated; leaves opposite, incumbent, retuse, and slightly emar- 

 ginateattop, united and two-toothed behind; fruit terminal ; sheath den- 

 ticulate. - 



8. TENERA. TENDER. 



Caulescent, pinnate, creeping, crowded; leaves alternate, distant, roundisbj 

 entire ; stipules minute, two-toothed. 



9. SERRULATA. SERRULATE. 



Caulescent; fronds pinnate, crowded, erect, nearly simple, obtuse, doubly 

 pinnate above ; leaves ovate, concave, bifid, serrate; fruit terminal ; sheath 

 subulate. 



10. JUNIPEROIDEA. JUNIPER-LIKE. 



Caulescent, erect, nearly simple, rigid, doubly pinnate above ; leaves lanceo- 

 late, falcate, bifid, one-rowed ; Iruit terminal. 



li. CAPPILLARIS, 



