While searching the celestial heavens for Ara, I found that it can be viewed at the tip of the Southern Sphere from Athens, Greece. Ara in Latin is also Arae meaning burning altar. Here is a great Greek dictionary!
The other label I believe which is the plant for folio 102v2 with the otol label is now the stinging nettle which is found in Europe. If you touch this plant it causes a stinging sensation.
Stinging Nettle
Traditional Medicinal Uses
Stinging nettle (herb and leaf) has been used as a medicine since ancient times. The Greek physicians Dioscorides (first century A.D.) and Galen (ca. 130-200 A.D.) used nettle for its diuretic and laxative action. The Roman naturalist Pliny the Elder (ca. 23-79 A.D.) reported its use as a counter irritant and effective remedy for chronic rheumatic pain, muscle paralysis, and sciatica.